Colors Encyclopedia

HEX atlas value

#213C20

#213C20 is a cool green HEX color close to Asphalt. According to Colors Encyclopedia, it converts to RGB 33, 60, 32, HSL 118, 30%, 18%, has luminance 0.0366, and belongs to the dark and earth tone groups.

greencooldarkearth-tone
#213C20 Sample readable text
HEX #213C20
RGB rgb(33, 60, 32)
HSL hsl(118 30% 18%)
CMYK cmyk(45, 0, 47, 76)
Luminance 0.0366
Contrast Black 1.73:1White 12.12:1

CSS

--color-213c20: #213C20;
.background-213c20 { background-color: #213C20; }
.text-213c20 { color: #213C20; }

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
Luminance0.0366
Black text1.73:1AA Fail
White text12.12:1AA 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":"#213C20","rgb":[33,60,32],"hsl":[118,30,18],"cmyk":[45,0,47,76],"luminance":0.0366,"contrast":{"black":1.73,"white":12.12}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":1.73,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":12.12,"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":"Raisin","hex":"#242124","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.32,"contrastWhite":15.93,"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":"#3B203C","hex":"#3B203C","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.46,"contrastWhite":14.4,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["cool green","dark","earth tone","dark green","earth tone green","Asphalt 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/213c20.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/asphalt.json","https://www.colorsencyclopedia.com/api/colors/slate-black.json","https://www.colorsencyclopedia.com/api/colors/rubber.json"]}
Harmonies
{"complementary":"#3B203C","analogous":["#2F3C20","#203C2D"],"triadic":["#20213C","#3C2021"],"tetradic":["#202F3C","#3B203C","#3C2D20"],"splitComplementary":["#2D203C","#3C202F"],"monochromatic":["#427740","#213C20","#000000"]}
Variants
{"light":"#427740","dark":"#000000","saturated":"#184616","desaturated":"#2A322A","pastel":"#5E7E5D","neon":"#048500"}
Nearest named colors
[{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":22.58317958127243},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":22.9128784747792},{"slug":"rubber","name":"Rubber","hex":"#2A2725","distance":23.388031127053},{"slug":"charcoal-blue","name":"Charcoal Blue","hex":"#263238","distance":26.476404589747453},{"slug":"raisin","name":"Raisin","hex":"#242124","distance":27.459060435491963}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #213C20

#213C20 is classified as a cool green value with dark and earth tone visual character. #213C20 is visually closest to Asphalt, a named gray color with HEX #2B2B2B.

The RGB channels are 33, 60, and 32, with green carrying the strongest channel weight. In HSL, the hue is 118deg with 30% saturation and 18% 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 0.0366, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 22.58, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.73:1AA Fail
White text12.12:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #213C20 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.73:1 · Fail
White text#FFFFFF12.12:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000
Raisin#FFFFFF text · best 15.93:1#242124
Rubber#FFFFFF text · best 14.83:1#2A2725
Slate Black#FFFFFF text · best 14.79:1#26282A
#3B203C#FFFFFF text · best 14.4:1#3B203C

Generated Palette

#213C20#213C20
#3B203C#3B203C
#2F3C20#2F3C20
#203C2D#203C2D
#427740#427740
Black#000000

Color Harmonies

#3B203C#3B203C
#2F3C20#2F3C20
#203C2D#203C2D
#20213C#20213C
#3C2021#3C2021

Variants

#427740#427740
Black#000000
#184616#184616
#2A322A#2A322A
#5E7E5D#5E7E5D
#048500#048500

Nearest Named Colors

Asphalt#2B2B2B
Slate Black#26282A
Rubber#2A2725
Charcoal Blue#263238
Raisin#242124

Related HEX Guides

Asphalt colorOpen the nearest named color reference for #2B2B2B.Slate Black colorOpen the nearest named color reference for #26282A.Rubber colorOpen the nearest named color reference for #2A2725.Green color familyBrowse named green colors related to this HEX value.Cool colorsExplore colors with similar temperature behavior.Dark colorsFind colors in the dark group.Earth Tone colorsFind colors in the earth tone group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#213C20 APIOpen the machine-readable JSON record for this HEX value.