HEX atlas value

#15331B

#15331B is a cool green HEX color close to Carbon Fiber. According to Colors Encyclopedia, it converts to RGB 21, 51, 27, HSL 132, 42%, 14%, has luminance 0.0261, and belongs to the dark and earth tone groups.

green cool dark earth-tone

#15331B Sample readable text

HEX #15331B

RGB rgb(21, 51, 27)

HSL hsl(132 42% 14%)

CMYK cmyk(59, 0, 47, 80)

Luminance 0.0261

Contrast Black 1.52:1White 13.8:1

CSS

--color-15331b: #15331B;
.background-15331b { background-color: #15331B; }
.text-15331b { color: #15331B; }

Luminance0.0261

Black text1.52:1AA Fail

White text13.8:1AA 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":"#15331B","rgb":[21,51,27],"hsl":[132,42,14],"cmyk":[59,0,47,80],"luminance":0.0261,"contrast":{"black":1.52,"white":13.8}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":1.52,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":13.8,"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":"#33152D","hex":"#33152D","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.29,"contrastWhite":16.33,"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","dark green","earth tone green","Carbon Fiber adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","dark theme accents","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/15331b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/carbon-fiber.json","https://www.colorsencyclopedia.com/api/colors/raisin.json","https://www.colorsencyclopedia.com/api/colors/slate-black.json"]}

Harmonies

{"complementary":"#33152D","analogous":["#1E3315","#15332A"],"triadic":["#1B1533","#331B15"],"tetradic":["#151E33","#33152D","#332A15"],"splitComplementary":["#2A1533","#33151E"],"monochromatic":["#2F743D","#15331B","#000000"]}

Variants

{"light":"#2F743D","dark":"#000000","saturated":"#0D3B16","desaturated":"#1D2B1F","pastel":"#497E53","neon":"#007016"}

Nearest named colors

[{"slug":"carbon-fiber","name":"Carbon Fiber","hex":"#1C1C1C","distance":24.06241883103193},{"slug":"raisin","name":"Raisin","hex":"#242124","distance":25.099800796022265},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":25.199206336708304},{"slug":"matte-black","name":"Matte Black","hex":"#1A1A1A","distance":25.514701644346147},{"slug":"rubber","name":"Rubber","hex":"#2A2725","distance":26.1725046566048}]

HEX meaning and use

About #15331B

#15331B is classified as a cool green value with dark and earth tone visual character. #15331B is visually closest to Carbon Fiber, a named gray color with HEX #1C1C1C.

The RGB channels are 21, 51, and 27, with green carrying the strongest channel weight. In HSL, the hue is 132deg with 42% 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 0.0261, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 24.06, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.52:1AA Fail

White text13.8:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #15331B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.52:1 · Fail

White text#FFFFFF13.8:1 · 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

#33152D#FFFFFF text · best 16.33:1#33152D

Raisin#FFFFFF text · best 15.93:1#242124

Generated Palette

#15331B#15331B

#33152D#33152D

#1E3315#1E3315

#15332A#15332A

#2F743D#2F743D

Black#000000

Color Harmonies

#33152D#33152D

#1E3315#1E3315

#15332A#15332A

#1B1533#1B1533

#331B15#331B15

Variants

#2F743D#2F743D

Black#000000

#0D3B16#0D3B16

#1D2B1F#1D2B1F

#497E53#497E53

#007016#007016

Nearest Named Colors

Carbon Fiber#1C1C1C

Raisin#242124

Slate Black#26282A

Matte Black#1A1A1A

Rubber#2A2725

#15331B

CSS

Machine-Readable HEX Data (JSON)

About #15331B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides