HEX atlas value

#1D3E27

#1D3E27 is a cool green HEX color close to Charcoal Blue. According to Colors Encyclopedia, it converts to RGB 29, 62, 39, HSL 138, 36%, 18%, has luminance 0.0385, and belongs to the dark and earth tone groups.

green cool dark earth-tone

#1D3E27 Sample readable text

HEX #1D3E27

RGB rgb(29, 62, 39)

HSL hsl(138 36% 18%)

CMYK cmyk(53, 0, 37, 76)

Luminance 0.0385

Contrast Black 1.77:1White 11.86:1

CSS

--color-1d3e27: #1D3E27;
.background-1d3e27 { background-color: #1D3E27; }
.text-1d3e27 { color: #1D3E27; }

Luminance0.0385

Black text1.77:1AA Fail

White text11.86:1AA 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":"#1D3E27","rgb":[29,62,39],"hsl":[138,36,18],"cmyk":[53,0,37,76],"luminance":0.0385,"contrast":{"black":1.77,"white":11.86}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":1.77,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":11.86,"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":"Rubber","hex":"#2A2725","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.83,"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":"#3E1D35","hex":"#3E1D35","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.43,"contrastWhite":14.66,"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"]}]

AI context

{"semanticGroups":["cool green","dark","earth tone","dark green","earth tone green","Charcoal Blue 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/1d3e27.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/charcoal-blue.json","https://www.colorsencyclopedia.com/api/colors/asphalt.json","https://www.colorsencyclopedia.com/api/colors/slate-black.json"]}

Harmonies

{"complementary":"#3E1D35","analogous":["#243E1D","#1D3E38"],"triadic":["#271D3E","#3E271D"],"tetradic":["#1D243E","#3E1D35","#3E381D"],"splitComplementary":["#381D3E","#3E1D24"],"monochromatic":["#3B7D4F","#1D3E27","#000000"]}

Variants

{"light":"#3B7D4F","dark":"#000000","saturated":"#134923","desaturated":"#27342B","pastel":"#578564","neon":"#008528"}

Nearest named colors

[{"slug":"charcoal-blue","name":"Charcoal Blue","hex":"#263238","distance":22.67156809750927},{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":23.93741840717165},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":23.958297101421877},{"slug":"gunmetal","name":"Gunmetal","hex":"#2A3439","distance":24.351591323771842},{"slug":"rubber","name":"Rubber","hex":"#2A2725","distance":26.49528259898354}]

HEX meaning and use

About #1D3E27

#1D3E27 is classified as a cool green value with dark and earth tone visual character. #1D3E27 is visually closest to Charcoal Blue, a named blue color with HEX #263238.

The RGB channels are 29, 62, and 39, with green carrying the strongest channel weight. In HSL, the hue is 138deg with 36% 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 0.0385, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 22.67, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.77:1AA Fail

White text11.86:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #1D3E27 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.77:1 · Fail

White text#FFFFFF11.86:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000

Rubber#FFFFFF text · best 14.83:1#2A2725

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

#3E1D35#FFFFFF text · best 14.66:1#3E1D35

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

Generated Palette

#1D3E27#1D3E27

#3E1D35#3E1D35

#243E1D#243E1D

#1D3E38#1D3E38

#3B7D4F#3B7D4F

Black#000000

Color Harmonies

#3E1D35#3E1D35

#243E1D#243E1D

#1D3E38#1D3E38

#271D3E#271D3E

#3E271D#3E271D

Variants

#3B7D4F#3B7D4F

Black#000000

#134923#134923

#27342B#27342B

#578564#578564

#008528#008528

Nearest Named Colors

Charcoal Blue#263238

Asphalt#2B2B2B

Slate Black#26282A

Gunmetal#2A3439

Rubber#2A2725

#1D3E27

CSS

Machine-Readable HEX Data (JSON)

About #1D3E27

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides