HEX atlas value

#12491D

#12491D is a cool green HEX color close to British Racing Green. According to Colors Encyclopedia, it converts to RGB 18, 73, 29, HSL 132, 60%, 18%, has luminance 0.0498, and belongs to the dark, earth tone, and jewel tone groups.

green cool dark earth-tone jewel-tone

#12491D Sample readable text

HEX #12491D

RGB rgb(18, 73, 29)

HSL hsl(132 60% 18%)

CMYK cmyk(75, 0, 60, 71)

Luminance 0.0498

Contrast Black 2:1White 10.52:1

CSS

--color-12491d: #12491D;
.background-12491d { background-color: #12491D; }
.text-12491d { color: #12491D; }

Luminance0.0498

Black text2:1AA Fail

White text10.52:1AA 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":"#12491D","rgb":[18,73,29],"hsl":[132,60,18],"cmyk":[75,0,60,71],"luminance":0.0498,"contrast":{"black":2,"white":10.52}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":2,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":10.52,"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":"Slate Black","hex":"#26282A","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.79,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#49123E","hex":"#49123E","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.44,"contrastWhite":14.58,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Asphalt","hex":"#2B2B2B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.48,"contrastWhite":14.15,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Charcoal Blue","hex":"#263238","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.6,"contrastWhite":13.16,"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/12491d.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/british-racing-green.json","https://www.colorsencyclopedia.com/api/colors/emerald-dark.json","https://www.colorsencyclopedia.com/api/colors/charcoal-blue.json"]}

Harmonies

{"complementary":"#49123E","analogous":["#234912","#124939"],"triadic":["#1D1249","#491D12"],"tetradic":["#122349","#49123E","#493912"],"splitComplementary":["#391249","#491223"],"monochromatic":["#25933B","#12491D","#000000"]}

Variants

{"light":"#25933B","dark":"#000000","saturated":"#085417","desaturated":"#1C3F23","pastel":"#3C9F50","neon":"#00851B"}

Nearest named colors

[{"slug":"british-racing-green","name":"British Racing Green","hex":"#004225","distance":20.904544960366874},{"slug":"emerald-dark","name":"Emerald Dark","hex":"#046307","distance":36.823905279043935},{"slug":"charcoal-blue","name":"Charcoal Blue","hex":"#263238","distance":40.718546143004666},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":40.718546143004666},{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":41.48493702538308}]

HEX meaning and use

About #12491D

#12491D is classified as a cool green value with dark, earth tone, and jewel tone visual character. #12491D is visually closest to British Racing Green, a named green color with HEX #004225.

The RGB channels are 18, 73, and 29, with green carrying the strongest channel weight. In HSL, the hue is 132deg with 60% saturation and 18% 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 0.0498, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 20.90, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2:1AA Fail

White text10.52:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #12491D needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002:1 · Fail

White text#FFFFFF10.52:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000

Slate Black#FFFFFF text · best 14.79:1#26282A

#49123E#FFFFFF text · best 14.58:1#49123E

Asphalt#FFFFFF text · best 14.15:1#2B2B2B

Charcoal Blue#FFFFFF text · best 13.16:1#263238

Generated Palette

#12491D#12491D

#49123E#49123E

#234912#234912

#124939#124939

#25933B#25933B

Black#000000

Color Harmonies

#49123E#49123E

#234912#234912

#124939#124939

#1D1249#1D1249

#491D12#491D12

Variants

#25933B#25933B

Black#000000

#085417#085417

#1C3F23#1C3F23

#3C9F50#3C9F50

#00851B#00851B

Nearest Named Colors

British Racing Green#004225

Emerald Dark#046307

Charcoal Blue#263238

Slate Black#26282A

Asphalt#2B2B2B

#12491D

CSS

Machine-Readable HEX Data (JSON)

About #12491D

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides