HEX atlas value

#12211A

#12211A is a cool green HEX color close to Matte Black. According to Colors Encyclopedia, it converts to RGB 18, 33, 26, HSL 152, 29%, 10%, has luminance 0.0129, and belongs to the dark and earth tone groups.

green cool dark earth-tone

#12211A Sample readable text

HEX #12211A

RGB rgb(18, 33, 26)

HSL hsl(152 29% 10%)

CMYK cmyk(45, 0, 21, 87)

Luminance 0.0129

Contrast Black 1.26:1White 16.69:1

CSS

--color-12211a: #12211A;
.background-12211a { background-color: #12211A; }
.text-12211a { color: #12211A; }

Luminance0.0129

Black text1.26:1AA Fail

White text16.69:1AA 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":"#12211A","rgb":[18,33,26],"hsl":[152,29,10],"cmyk":[45,0,21,87],"luminance":0.0129,"contrast":{"black":1.26,"white":16.69}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":1.26,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":16.69,"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":"Carbon Black","hex":"#0C0C0C","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.07,"contrastWhite":19.55,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#211219","hex":"#211219","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.17,"contrastWhite":18.01,"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":"#181B1A","hex":"#181B1A","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.21,"contrastWhite":17.36,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["cool green","dark","earth tone","dark green","earth tone green","Matte Black 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/12211a.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/matte-black.json","https://www.colorsencyclopedia.com/api/colors/carbon-fiber.json","https://www.colorsencyclopedia.com/api/colors/raisin.json"]}

Harmonies

{"complementary":"#211219","analogous":["#122113","#122021"],"triadic":["#1A1221","#211A12"],"tetradic":["#131221","#211219","#202112"],"splitComplementary":["#211220","#211312"],"monochromatic":["#335C49","#12211A","#000000"]}

Variants

{"light":"#335C49","dark":"#000000","saturated":"#0C271A","desaturated":"#181B1A","pastel":"#4D665A","neon":"#005C31"}

Nearest named colors

[{"slug":"matte-black","name":"Matte Black","hex":"#1A1A1A","distance":10.63014581273465},{"slug":"carbon-fiber","name":"Carbon Fiber","hex":"#1C1C1C","distance":11.357816691600547},{"slug":"raisin","name":"Raisin","hex":"#242124","distance":20.591260281974},{"slug":"carbon-black","name":"Carbon Black","hex":"#0C0C0C","distance":25.942243542145693},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":26.551836094703507}]

HEX meaning and use

About #12211A

#12211A is classified as a cool green value with dark and earth tone visual character. #12211A is visually closest to Matte Black, a named gray color with HEX #1A1A1A.

The RGB channels are 18, 33, and 26, with green carrying the strongest channel weight. In HSL, the hue is 152deg with 29% saturation and 10% lightness, so this page treats it as a low-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 0.0129, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 10.63, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.26:1AA Fail

White text16.69:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #12211A needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.26:1 · Fail

White text#FFFFFF16.69:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000

Carbon Black#FFFFFF text · best 19.55:1#0C0C0C

#211219#FFFFFF text · best 18.01:1#211219

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

#181B1A#FFFFFF text · best 17.36:1#181B1A

Generated Palette

#12211A#12211A

#211219#211219

#122113#122113

#122021#122021

#335C49#335C49

Black#000000

Color Harmonies

#211219#211219

#122113#122113

#122021#122021

#1A1221#1A1221

#211A12#211A12

Variants

#335C49#335C49

Black#000000

#0C271A#0C271A

#181B1A#181B1A

#4D665A#4D665A

#005C31#005C31

Nearest Named Colors

Matte Black#1A1A1A

Carbon Fiber#1C1C1C

Raisin#242124

Carbon Black#0C0C0C

Slate Black#26282A

#12211A

CSS

Machine-Readable HEX Data (JSON)

About #12211A

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides