Gemstone color grading system for the Web

 Color description
 (GIA notation):
very light

light;
strong

light;
vs greyish
/brownish
m light;
strong
m light;
vs greyish
/brownish
m light;
sl greyish
/brownish
medium;
strong
medium;
vs greyish
/brownish
medium;
sl greyish
/brownish
med dark;
strong
med dark;
vs greyish
/brownish
dark
 Red 001 - very light Red (web RGB code: ffeaea) 002 - light Red; strong (web RGB code: feabab) 003 - light Red; very slightly brownish (web RGB code: f1b8b8) 004 - medium light Red; strong (web RGB code: fc5858) 005 - medium light Red; very slightly brownish (web RGB code: e47070) 006 - medium light Red; slightly brownish (web RGB code: ce8686) 007 - medium Red; strong (web RGB code: fb0404) 008 - medium Red; very slightly brownish (web RGB code: d72828) 009 - medium Red; slightly brownish (web RGB code: b54a4a) 010 - medium dark Red; strong (web RGB code: a70303) 011 - medium dark Red; very slightly brownish (web RGB code: 8d1d1d) 012 - dark Red (web RGB code: 540101)
 orangey Red

n/a

013 - light orangey Red; strong (web RGB code: fec4ab)

n/a

014 - medium light orangey Red; strong (web RGB code: fc8958) 015 - medium light orangey Red; very slightly brownish (web RGB code: e49370)

n/a

016 - medium orangey Red; strong (web RGB code: fb4f04) 017 - medium orangey Red; very slightly brownish (web RGB code: d85c27)

n/a

018 - medium dark orangey Red; strong (web RGB code: a73403)

n/a

n/a

 reddish Orange 019 - very light reddish Orange (web RGB code: fff4ea) 020 - light reddish Orange; strong (web RGB code: fed5ab) 021 - light reddish Orange; very slightly brownish (web RGB code: f2d7bb) 022 - medium light reddish Orange; strong (web RGB code: fcaa58) 023 - medium light reddish Orange; very slightly brownish (web RGB code: e4aa70) 024 - medium light reddish Orange; slightly brownish (web RGB code: ceaa86) 025 - medium reddish Orange; strong (web RGB code: fb8004) 026 - medium reddish Orange; very slightly brownish (web RGB code: d88027) 027 - medium reddish Orange; slightly brownish (web RGB code: b68049) 028 - medium dark reddish Orange; strong (web RGB code: a75503) 029 - medium dark reddish Orange; very slightly brownish (web RGB code: 8d551d) 030 - dark reddish Orange (web RGB code: 542b01)
 Orange

n/a

031 - light Orange; strong (web RGB code: fee6ab)

n/a

032 - medium light Orange; strong (web RGB code: fccb58) 033 - medium light Orange; very slightly brownish (web RGB code: e4c170)

n/a

034 - medium Orange; strong (web RGB code: fbb004) 035 - medium Orange; very slightly brownish (web RGB code: d8a327)

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036 - medium dark Orange; strong (web RGB code: a77603)

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 orangey Yellow

n/a

037 - light orangey Yellow; strong (web RGB code: fef5ab)

n/a

038 - medium light orangey Yellow; strong (web RGB code: fcec58) 039 - medium light orangey Yellow; very slightly brownish (web RGB code: e4d970)

n/a

040 - medium orangey Yellow; strong (web RGB code: fbe204) 041 - medium orangey Yellow; very slightly brownish (web RGB code: d8c627)

n/a

042 - medium dark orangey Yellow; strong (web RGB code: a79703)

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 Yellow 043 - very light Yellow (web RGB code: ffffe1) 044 - light Yellow; strong (web RGB code: fefeab) 045 - light Yellow; very slightly brownish (web RGB code: f1f1b8) 046 - medium light Yellow; strong (web RGB code: fcfc58) 047 - medium light Yellow; very slightly brownish (web RGB code: e4e470) 048 - medium light Yellow; slightly brownish (web RGB code: cece86) 049 - medium Yellow; strong (web RGB code: fbfb04) 050 - medium Yellow; very slightly brownish (web RGB code: d8d827) 051 - medium Yellow; slightly brownish (web RGB code: b6b649) 052 - medium dark Yellow; strong (web RGB code: a7a703) 053 - medium dark Yellow; very slightly brownish (web RGB code: 8d8d1d) 054 - dark Yellow (web RGB code: 545401)
 greenish Yellow

n/a

055 - light greenish Yellow; strong (web RGB code: f5feab)

n/a

056 - medium light greenish Yellow; strong (web RGB code: ecfc58) 057 - medium light greenish Yellow; very slightly greyish (web RGB code: d9e470)

n/a

058 - medium greenish Yellow; strong (web RGB code: e2fb04) 059 - medium greenish Yellow; very slightly greyish (web RGB code: c6d827)

n/a

060 - medium dark greenish Yellow; strong (web RGB code: 97a703)

n/a

n/a

 yellowish Green 061 - very light yellowish Green (web RGB code: f8ffe1) 062 - light yellowish Green; strong (web RGB code: eafeab) 063 - light yellowish Green; very slightly greyish (web RGB code: e3f1b8) 064 - medium light yellowish Green; strong (web RGB code: d3fc58) 065 - medium light yellowish Green; very slightly greyish (web RGB code: c8e470) 066 - medium light yellowish Green; slightly greyish (web RGB code: bcce86) 067 - medium yellowish Green; strong (web RGB code: bdfb04) 068 - medium yellowish Green; very slightly greyish (web RGB code: acd827) 069 - medium yellowish Green; slightly greyish (web RGB code: 9bb649) 070 - medium dark yellowish Green; strong (web RGB code: 7ea703) 071 - medium dark yellowish Green; very slightly greyish (web RGB code: 728d1d) 072 - dark yellowish Green (web RGB code: 405401)
 slightly yellowish Green

n/a

073 - light slightly yellowish Green; strong (web RGB code: d5feab)

n/a

074 - medium light slightly yellowish Green; strong (web RGB code: aafc58) 075 - medium light slightly yellowish Green; very slightly greyish (web RGB code: aae470)

n/a

076 - medium slightly yellowish Green; strong (web RGB code: 80fb04) 077 - medium slightly yellowish Green; very slightly greyish (web RGB code: 80d827)

n/a

078 - medium dark slightly yellowish Green; strong (web RGB code: 55a703)

n/a

n/a

 Green 079 - very light Green (web RGB code: eaffea) 080 - light Green; strong (web RGB code: abfeab) 081 - light Green; very slightly greyish (web RGB code: b8f1b8) 082 - medium light Green; strong (web RGB code: 58fc58) 083 - medium light Green; very slightly greyish (web RGB code: 70e470) 084 - medium light Green; slightly greyish (web RGB code: 86ce86) 085 - medium Green; strong (web RGB code: 04fb04) 086 - medium Green; very slightly greyish (web RGB code: 27d827) 087 - medium Green; slightly greyish (web RGB code: 49b649) 088 - medium dark Green; strong (web RGB code: 03a703) 089 - medium dark Green; very slightly greyish (web RGB code: 1d8d1d) 090 - dark Green (web RGB code: 015401)
 very slightly bluish Green 091 - very light very slightly bluish Green (web RGB code: eafff4) 092 - light very slightly bluish Green; strong (web RGB code: abfed5) 093 - light very slightly bluish Green; very slightly greyish (web RGB code: b8f1d5) 094 - medium light very slightly bluish Green; strong (web RGB code: 58fcaa) 095 - medium light very slightly bluish Green; very slightly greyish (web RGB code: 70e4aa) 096 - medium light very slightly bluish Green; slightly greyish (web RGB code: 86ceaa) 097 - medium very slightly bluish Green; strong (web RGB code: 04fb80) 098 - medium very slightly bluish Green; very slightly greyish (web RGB code: 27d880) 099 - medium very slightly bluish Green; slightly greyish (web RGB code: 49b680) 100 - medium dark very slightly bluish Green; strong (web RGB code: 03a755) 101 - medium dark very slightly bluish Green; very slightly greyish (web RGB code: 1d8d55) 102 - dark very slightly bluish Green (web RGB code: 01542b)
 bluish Green

n/a

103 - light bluish Green; strong (web RGB code: abfeed)

n/a

104 - medium light bluish Green; strong (web RGB code: 58fcdb) 105 - medium light bluish Green; very slightly greyish (web RGB code: 70e4cd)

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106 - medium bluish Green; strong (web RGB code: 04fbca) 107 - medium bluish Green; very slightly greyish (web RGB code: 27d8b5)

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108 - medium dark bluish Green; strong (web RGB code: 03a786)

n/a

n/a

 very strongly bluish Green 109 - very light very strongly bluish Green (web RGB code: eaffff) 110 - light very strongly bluish Green; strong (web RGB code: abfefe) 111 - light very strongly bluish Green; very slightly greyish (web RGB code: b8f1f1) 112 - medium light very strongly bluish Green; strong (web RGB code: 58fcfc) 113 - medium light very strongly bluish Green; very slightly greyish (web RGB code: 70e4e4) 114 - medium light very strongly bluish Green; slightly greyish (web RGB code: 86cece) 115 - medium very strongly bluish Green; strong (web RGB code: 04fbfb) 116 - medium very strongly bluish Green; very slightly greyish (web RGB code: 27d8d8) 117 - medium very strongly bluish Green; slightly greyish (web RGB code: 49b6b6) 118 - medium dark very strongly bluish Green; strong (web RGB code: 03a7a7) 119 - medium dark very strongly bluish Green; very slightly greyish (web RGB code: 1d8d8d) 120 - dark very strongly bluish Green (web RGB code: 015454)
 Green-Blue or Blue-Green

n/a

121 - light Green-Blue or Blue-Green; strong (web RGB code: abf1fe)

n/a

122 - medium light Green-Blue or Blue-Green; strong (web RGB code: 58e3fc) 123 - medium light Green-Blue or Blue-Green; very slightly greyish (web RGB code: 70d3e4)

n/a

124 - medium Green-Blue or Blue-Green; strong (web RGB code: 04d6fb) 125 - medium Green-Blue or Blue-Green; very slightly greyish (web RGB code: 27bdd8)

n/a

126 - medium dark Green-Blue or Blue-Green; strong (web RGB code: 038ea7)

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 very strongly greenish Blue 127 - very light very strongly greenish Blue (web RGB code: eaf7ff 128 - light very strongly greenish Blue; strong (web RGB code: abddfe) 129 - light very strongly greenish Blue; very slightly greyish (web RGB code: b8daf1) 130 - medium light very strongly greenish Blue; strong (web RGB code: 58bafc) 131 - medium light very strongly greenish Blue; very slightly greyish (web RGB code: 70b6e4) 132 - medium light very strongly greenish Blue; slightly greyish (web RGB code: 86b1ce) 133 - medium very strongly greenish Blue; strong (web RGB code: 0498fb) 134 - medium very strongly greenish Blue; very slightly greyish (web RGB code: 2792d8) 135 - medium very strongly greenish Blue; slightly greyish (web RGB code: 498ab6) 136 - medium dark very strongly greenish Blue; strong (web RGB code: 0365a7) 137 - medium dark very strongly greenish Blue; very slightly greyish (web RGB code: 1d618d) 138 - dark very strongly greenish Blue (web RGB code: 013354)
 very slightly greenish Blue

n/a

139 - light very slightly greenish Blue; strong (web RGB code: abc4fe)

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140 - medium light very slightly greenish Blue; strong (web RGB code: 5889fc) 141 - medium light very slightly greenish Blue; very slightly greyish (web RGB code: 7093e4)

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142 - medium very slightly greenish Blue; strong (web RGB code: 044ffb) 143 - medium very slightly greenish Blue; very slightly greyish (web RGB code: 275cd8)

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144 - medium dark very slightly greenish Blue; strong (web RGB code: 0334a7)

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 Blue 145 - very light Blue (web RGB code: eaeaff) 146 - light Blue; strong (web RGB code: ababfe) 147 - light Blue; very slightly greyish (web RGB code: b8b8f1) 148 - medium light Blue; strong (web RGB code: 5858fc) 149 - medium light Blue; very slightly greyish (web RGB code: 7070e4) 150 - medium light Blue; slightly greyish (web RGB code: 8686ce) 151 - medium Blue; strong (web RGB code: 0404fb) 152 - medium Blue; very slightly greyish (web RGB code: 2727d8) 153 - medium Blue; slightly greyish (web RGB code: 4949b6) 154 - medium dark Blue; strong (web RGB code: 0303a7) 155 - medium dark Blue; very slightly greyish (web RGB code: 1d1d8d) 156 - dark Blue (web RGB code: 010154)
 violetish Blue

n/a

157 - light violetish Blue; strong (web RGB code: ccabfe)

n/a

158 - medium light violetish Blue; strong (web RGB code: 9a58fc) 159 - medium light violetish Blue; very slightly greyish (web RGB code: 9e70e4)

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160 - medium violetish Blue; strong (web RGB code: 6704fb) 161 - medium violetish Blue; very slightly greyish (web RGB code: 6d26d9)

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162 - medium dark violetish Blue; strong (web RGB code: 4503a7)

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 bluish Violet 163 - very light bluish Violet (web RGB code: f8eaff) 164 - light bluish Violet; strong (web RGB code: e1abfe) 165 - light bluish Violet; very slightly greyish (web RGB code: ddb8f1) 166 - medium light bluish Violet; strong (web RGB code: c258fc) 167 - medium light bluish Violet; very slightly greyish (web RGB code: bc70e4) 168 - medium light bluish Violet; slightly greyish (web RGB code: b586ce) 169 - medium bluish Violet; strong (web RGB code: a504fb) 170 - medium bluish Violet; very slightly greyish (web RGB code: 9a27d8) 171 - medium bluish Violet; slightly greyish (web RGB code: 8f49b6) 172 - medium dark bluish Violet; strong (web RGB code: 6d03a7) 173 - medium dark bluish Violet; very slightly greyish (web RGB code: 661d8d) 174 - dark bluish Violet (web RGB code: 370154)
 Violet

n/a

175 - light Violet; strong (web RGB code: edabfe)

n/a

176 - medium light Violet; strong (web RGB code: db58fc) 177 - medium light Violet; very slightly greyish (web RGB code: cd70e4)

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178 - medium Violet; strong (web RGB code: ca04fb) 179 - medium Violet; very slightly greyish (web RGB code: b527d8)

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180 - medium dark Violet; strong (web RGB code: 8603a7)

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 bluish Purple

n/a

181 - light bluish Purple; strong (web RGB code: faabfe)

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182 - medium light bluish Purple; strong (web RGB code: f358fc) 183 - medium light bluish Purple; very slightly greyish (web RGB code: df70e4)

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184 - medium bluish Purple; strong (web RGB code: ee04fb) 185 - medium bluish Purple; very slightly greyish (web RGB code: cf27d8)

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186 - medium dark bluish Purple; strong (web RGB code: 9e03a7)

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 Purple 187 - very light Purple (web RGB code: ffeafd) 188 - light Purple; strong (web RGB code: feabf5) 189 - light Purple; very slightly greyish (web RGB code: f1b8ec) 190 - medium light Purple; strong (web RGB code: fc58ec) 191 - medium light Purple; very slightly greyish (web RGB code: e470d9) 192 - medium light Purple; slightly greyish (web RGB code: ce86c7) 193 - medium Purple; strong (web RGB code: fb04e2) 194 - medium Purple; very slightly greyish (web RGB code: d827c6) 195 - medium Purple; slightly greyish (web RGB code: b649ab) 196 - medium dark Purple; strong (web RGB code: a70397) 197 - medium dark Purple; very slightly greyish (web RGB code: 8d1d82) 198 - dark Purple (web RGB code: 54014b)
 reddish Purple

n/a

199 - light reddish Purple; strong (web RGB code: feabe1)

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200 - medium light reddish Purple; strong (web RGB code: fc58c2) 201 - medium light reddish Purple; very slightly brownish (web RGB code: e470bc)

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202 - medium reddish Purple; strong (web RGB code: fb04a5) 203 - medium reddish Purple; very slightly brownish (web RGB code: d8279a)

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204 - medium dark reddish Purple; strong (web RGB code: a7036d)

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 strongly purplish Red 205 - very light strongly purplish Red (web RGB code: ffeaf3) 206 - light strongly purplish Red; strong (web RGB code: feabd0) 207 - light strongly purplish Red; very slightly brownish (web RGB code: f1b8d1) 208 - medium light strongly purplish Red; strong (web RGB code: fc58a2) 209 - medium light strongly purplish Red; very slightly brownish (web RGB code: e470a5) 210 - medium light strongly purplish Red; slightly brownish (web RGB code: ce86a7) 211 - medium strongly purplish Red; strong (web RGB code: fb0473) 212 - medium strongly purplish Red; very slightly brownish (web RGB code: d82777) 213 - medium strongly purplish Red; slightly brownish (web RGB code: b6497a) 214 - medium dark strongly purplish Red; strong (web RGB code: a7034d) 215 - medium dark strongly purplish Red; very slightly brownish (web RGB code: 8d1d50) 216 - dark strongly purplish Red (web RGB code: 540126)
 slightly purplish Red

n/a

217 - light slightly purplish Red; strong (web RGB code: feabc0)

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218 - medium light slightly purplish Red; strong (web RGB code: fc5882) 219 - medium light slightly purplish Red; very slightly brownish (web RGB code: e4708d)

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220 - medium slightly purplish Red; strong (web RGB code: fb0442) 221 - medium slightly purplish Red; very slightly brownish (web RGB code: d82754)

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222 - medium dark slightly purplish Red; strong (web RGB code: a7032d)

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 Grey

n/a

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223 - Colorless (web RGB code: ffffff) 224 - very light Grey (web RGB code: f4f4f4) 225 - light Grey (web RGB code: d4d4d4) 226 - medium light Grey (web RGB code: aaaaaa) 227 - Grey (web RGB code: 7f7f7f) 228 - medium dark Grey (web RGB code: 555555) 229 - dark Grey (web RGB code: 2a2a2a) 230 - Black (web RGB code: 000000)

n/a

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Placing the cursor over the top right corner of the pattern displays the color ID, description and web RGB code.