HEX atlas value

#18442D

#18442D is a cool green HEX color close to Charcoal Blue. According to Colors Encyclopedia, it converts to RGB 24, 68, 45, HSL 149, 48%, 18%, has luminance 0.0452, and belongs to the dark, earth tone, and jewel tone groups.

green cool dark earth-tone jewel-tone

#18442D Sample readable text

HEX #18442D

RGB rgb(24, 68, 45)

HSL hsl(149 48% 18%)

CMYK cmyk(65, 0, 34, 73)

Luminance 0.0452

Contrast Black 1.9:1White 11.03:1

CSS

--color-18442d: #18442D;
.background-18442d { background-color: #18442D; }
.text-18442d { color: #18442D; }

Luminance0.0452

Black text1.9:1AA Fail

White text11.03:1AA 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":"#18442D","rgb":[24,68,45],"hsl":[149,48,18],"cmyk":[65,0,34,73],"luminance":0.0452,"contrast":{"black":1.9,"white":11.03}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":1.9,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":11.03,"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":"#44182F","hex":"#44182F","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.81,"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","jewel tone","dark green","earth tone green","jewel tone green","Charcoal Blue 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/18442d.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/charcoal-blue.json","https://www.colorsencyclopedia.com/api/colors/british-racing-green.json","https://www.colorsencyclopedia.com/api/colors/gunmetal.json"]}

Harmonies

{"complementary":"#44182F","analogous":["#194418","#184443"],"triadic":["#2D1844","#442D18"],"tetradic":["#181944","#44182F","#444318"],"splitComplementary":["#431844","#441819"],"monochromatic":["#30885A","#18442D","#000000"]}

Variants

{"light":"#30885A","dark":"#000000","saturated":"#0E4E2D","desaturated":"#223A2E","pastel":"#49926C","neon":"#008540"}

Nearest named colors

[{"slug":"charcoal-blue","name":"Charcoal Blue","hex":"#263238","distance":25.317977802344327},{"slug":"british-racing-green","name":"British Racing Green","hex":"#004225","distance":25.37715508089904},{"slug":"gunmetal","name":"Gunmetal","hex":"#2A3439","distance":26.90724809414742},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":31.448370387032774},{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":31.464265445104548}]

HEX meaning and use

About #18442D

#18442D is classified as a cool green value with dark, earth tone, and jewel tone visual character. #18442D is visually closest to Charcoal Blue, a named blue color with HEX #263238.

The RGB channels are 24, 68, and 45, with green carrying the strongest channel weight. In HSL, the hue is 149deg with 48% 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 0.0452, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 25.32, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.9:1AA Fail

White text11.03:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #18442D needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.9:1 · Fail

White text#FFFFFF11.03:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000

#44182F#FFFFFF text · best 14.81:1#44182F

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

#18442D#18442D

#44182F#44182F

#194418#194418

#184443#184443

#30885A#30885A

Black#000000

Color Harmonies

#44182F#44182F

#194418#194418

#184443#184443

#2D1844#2D1844

#442D18#442D18

Variants

#30885A#30885A

Black#000000

#0E4E2D#0E4E2D

#223A2E#223A2E

#49926C#49926C

#008540#008540

Nearest Named Colors

Charcoal Blue#263238

British Racing Green#004225

Gunmetal#2A3439

Slate Black#26282A

Asphalt#2B2B2B

#18442D

CSS

Machine-Readable HEX Data (JSON)

About #18442D

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides