HEX atlas value

#1B412E

#1B412E is a cool green HEX color close to Charcoal Blue. According to Colors Encyclopedia, it converts to RGB 27, 65, 46, HSL 150, 41%, 18%, has luminance 0.0421, and belongs to the dark and earth tone groups.

#1B412E Sample readable text
HEX #1B412E
RGB rgb(27, 65, 46)
HSL hsl(150 41% 18%)
CMYK cmyk(58, 0, 29, 75)
Luminance 0.0421
Contrast Black 1.84:1White 11.4:1

CSS

--color-1b412e: #1B412E;
.background-1b412e { background-color: #1B412E; }
.text-1b412e { color: #1B412E; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.0421
Black text1.84:1AA Fail
White text11.4:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#1B412E","rgb":[27,65,46],"hsl":[150,41,18],"cmyk":[58,0,29,75],"luminance":0.0421,"contrast":{"black":1.84,"white":11.4}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":1.84,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":11.4,"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":"#411B2E","hex":"#411B2E","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.79,"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":"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","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/1b412e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/charcoal-blue.json","https://www.colorsencyclopedia.com/api/colors/gunmetal.json","https://www.colorsencyclopedia.com/api/colors/asphalt.json"]}
Harmonies
{"complementary":"#411B2E","analogous":["#1B411B","#1B4141"],"triadic":["#2E1B41","#412E1B"],"tetradic":["#1B1B41","#411B2E","#41411B"],"splitComplementary":["#411B41","#411B1B"],"monochromatic":["#36815C","#1B412E","#000000"]}
Variants
{"light":"#36815C","dark":"#000000","saturated":"#114B2E","desaturated":"#25372E","pastel":"#518A6E","neon":"#008542"}
Nearest named colors
[{"slug":"charcoal-blue","name":"Charcoal Blue","hex":"#263238","distance":21.118712081942874},{"slug":"gunmetal","name":"Gunmetal","hex":"#2A3439","distance":22.693611435820433},{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":27.367864366808018},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":27.60434748368452},{"slug":"british-racing-green","name":"British Racing Green","hex":"#004225","distance":28.478061731796284}]

HEX meaning and use

About #1B412E

#1B412E is classified as a cool green value with dark and earth tone visual character. #1B412E is visually closest to Charcoal Blue, a named blue color with HEX #263238.

The RGB channels are 27, 65, and 46, with green carrying the strongest channel weight. In HSL, the hue is 150deg with 41% 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 0.0421, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 21.12, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.84:1AA Fail
White text11.4:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #1B412E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.84:1 · Fail
White text#FFFFFF11.4:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000
#411B2E#FFFFFF text · best 14.79:1#411B2E
Slate Black#FFFFFF text · best 14.79:1#26282A
Asphalt#FFFFFF text · best 14.15:1#2B2B2B
Charcoal Blue#FFFFFF text · best 13.16:1#263238

Generated Palette

#1B412E#1B412E
#411B2E#411B2E
#1B411B#1B411B
#1B4141#1B4141
#36815C#36815C
Black#000000

Color Harmonies

#411B2E#411B2E
#1B411B#1B411B
#1B4141#1B4141
#2E1B41#2E1B41
#412E1B#412E1B

Variants

#36815C#36815C
Black#000000
#114B2E#114B2E
#25372E#25372E
#518A6E#518A6E
#008542#008542

Nearest Named Colors