HEX atlas value

#10371B

#10371B is a cool green HEX color close to British Racing Green. According to Colors Encyclopedia, it converts to RGB 16, 55, 27, HSL 137, 55%, 14%, has luminance 0.0292, and belongs to the dark, earth tone, and jewel tone groups.

green cool dark earth-tone jewel-tone

#10371B Sample readable text

HEX #10371B

RGB rgb(16, 55, 27)

HSL hsl(137 55% 14%)

CMYK cmyk(71, 0, 51, 78)

Luminance 0.0292

Contrast Black 1.58:1White 13.26:1

CSS

--color-10371b: #10371B;
.background-10371b { background-color: #10371B; }
.text-10371b { color: #10371B; }

Luminance0.0292

Black text1.58:1AA Fail

White text13.26:1AA Pass

hexCanonical HEX value

rgbRed, green, blue channels

hslHue, saturation, lightness

cmykApproximate print conversion

wcagAA and AAA contrast options

harmoniesMathematical harmony sets

variantsGenerated tone variants

nearestColorsKnowledge graph neighbors

Structured sections

Color systems

{"hex":"#10371B","rgb":[16,55,27],"hsl":[137,55,14],"cmyk":[71,0,51,78],"luminance":0.0292,"contrast":{"black":1.58,"white":13.26}}

WCAG

{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":1.58,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":13.26,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"Black","hex":"#000000","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1,"contrastWhite":21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Matte Black","hex":"#1A1A1A","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.21,"contrastWhite":17.41,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Carbon Fiber","hex":"#1C1C1C","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.23,"contrastWhite":17.05,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#37102C","hex":"#37102C","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.27,"contrastWhite":16.51,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Raisin","hex":"#242124","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.32,"contrastWhite":15.93,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["cool green","dark","earth tone","jewel tone","dark green","earth tone green","jewel tone green","British Racing Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","rich accent palettes","dark theme accents"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/10371b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/british-racing-green.json","https://www.colorsencyclopedia.com/api/colors/carbon-fiber.json","https://www.colorsencyclopedia.com/api/colors/slate-black.json"]}

Harmonies

{"complementary":"#37102C","analogous":["#193710","#10372F"],"triadic":["#1B1037","#371B10"],"tetradic":["#101937","#37102C","#372F10"],"splitComplementary":["#2F1037","#371019"],"monochromatic":["#257E3E","#10371B","#000000"]}

Variants

{"light":"#257E3E","dark":"#000000","saturated":"#083F18","desaturated":"#182F1F","pastel":"#3C8B52","neon":"#007020"}

Nearest named colors

[{"slug":"british-racing-green","name":"British Racing Green","hex":"#004225","distance":21.840329667841555},{"slug":"carbon-fiber","name":"Carbon Fiber","hex":"#1C1C1C","distance":29.563490998188964},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":30.56141357987225},{"slug":"matte-black","name":"Matte Black","hex":"#1A1A1A","distance":30.692018506445613},{"slug":"raisin","name":"Raisin","hex":"#242124","distance":31.064449134018133}]

HEX meaning and use

About #10371B

#10371B is classified as a cool green value with dark, earth tone, and jewel tone visual character. #10371B is visually closest to British Racing Green, a named green color with HEX #004225.

The RGB channels are 16, 55, and 27, with green carrying the strongest channel weight. In HSL, the hue is 137deg with 55% saturation and 14% lightness, so this page treats it as a moderate-saturation, dark atlas color rather than a generic swatch.

According to Colors Encyclopedia, this HEX value works best for color conversion, WCAG contrast checks, CSS color tokens, and natural palettes. Its luminance is 0.0292, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 21.84, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.58:1AA Fail

White text13.26:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #10371B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.58:1 · Fail

White text#FFFFFF13.26:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000

Matte Black#FFFFFF text · best 17.41:1#1A1A1A

Carbon Fiber#FFFFFF text · best 17.05:1#1C1C1C

#37102C#FFFFFF text · best 16.51:1#37102C

Raisin#FFFFFF text · best 15.93:1#242124

Generated Palette

#10371B#10371B

#37102C#37102C

#193710#193710

#10372F#10372F

#257E3E#257E3E

Black#000000

Color Harmonies

#37102C#37102C

#193710#193710

#10372F#10372F

#1B1037#1B1037

#371B10#371B10

Variants

#257E3E#257E3E

Black#000000

#083F18#083F18

#182F1F#182F1F

#3C8B52#3C8B52

#007020#007020

Nearest Named Colors

British Racing Green#004225

Carbon Fiber#1C1C1C

Slate Black#26282A

Matte Black#1A1A1A

Raisin#242124

#10371B

CSS

Machine-Readable HEX Data (JSON)

About #10371B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides