Colors Encyclopedia

HEX atlas value

#128203

#128203 is a cool green HEX color close to Green. According to Colors Encyclopedia, it converts to RGB 18, 130, 3, HSL 113, 95%, 26%, has luminance 0.161, and belongs to the jewel tone group.

greencooljewel-tone
#128203 Sample readable text
HEX #128203
RGB rgb(18, 130, 3)
HSL hsl(113 95% 26%)
CMYK cmyk(86, 0, 98, 49)
Luminance 0.161
Contrast Black 4.22:1White 4.98:1

CSS

--color-128203: #128203;
.background-128203 { background-color: #128203; }
.text-128203 { color: #128203; }

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
Luminance0.161
Black text4.22:1AA Fail
White text4.98:1AA 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":"#128203","rgb":[18,130,3],"hsl":[113,95,26],"cmyk":[86,0,98,49],"luminance":0.161,"contrast":{"black":4.22,"white":4.98}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":4.22,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.98,"wcagAA":true,"wcagAAA":false}]
Accessible alternatives
[{"name":"#062801","hex":"#062801","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.31,"contrastWhite":16.01,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#1EDB06","hex":"#1EDB06","family":"green","bestTextColor":"#000000","contrastBlack":11.19,"contrastWhite":1.88,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#730381","hex":"#730381","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.06,"contrastWhite":10.2,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Emerald Dark","hex":"#046307","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.79,"contrastWhite":7.52,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Dark Green","hex":"#006400","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.82,"contrastWhite":7.44,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]}]
AI context
{"semanticGroups":["cool green","jewel tone","jewel tone green","Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/128203.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/green.json","https://www.colorsencyclopedia.com/api/colors/emerald-dark.json","https://www.colorsencyclopedia.com/api/colors/dark-green.json"]}
Harmonies
{"complementary":"#730381","analogous":["#518103","#038134"],"triadic":["#031281","#810312"],"tetradic":["#035181","#730381","#813403"],"splitComplementary":["#340381","#810351"],"monochromatic":["#1EDB06","#128203","#062801"]}
Variants
{"light":"#1EDB06","dark":"#062801","saturated":"#0F8500","desaturated":"#1D7312","pastel":"#35E61E","neon":"#14AD00"}
Nearest named colors
[{"slug":"green","name":"Green","hex":"#008000","distance":18.35755975068582},{"slug":"emerald-dark","name":"Emerald Dark","hex":"#046307","distance":34.249087579087416},{"slug":"dark-green","name":"Dark Green","hex":"#006400","distance":35.11409973215888},{"slug":"forest-green","name":"Forest Green","hex":"#228B22","distance":36.02776706930364},{"slug":"scheeles-green","name":"Scheele Green","hex":"#478800","distance":53.422841556772326}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #128203

#128203 is classified as a cool green value with jewel tone visual character. #128203 is visually closest to Green, a named green color with HEX #008000.

The RGB channels are 18, 130, and 3, with green carrying the strongest channel weight. In HSL, the hue is 113deg with 95% saturation and 26% lightness, so this page treats it as a high-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 rich accent palettes. Its luminance is 0.161, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 18.36, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.22:1AA Fail
White text4.98:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #128203 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.22:1 · Fail
White text#FFFFFF4.98:1 · AA

Accessible Alternatives

#062801#FFFFFF text · best 16.01:1#062801
#1EDB06#000000 text · best 11.19:1#1EDB06
#730381#FFFFFF text · best 10.2:1#730381
Emerald Dark#FFFFFF text · best 7.52:1#046307
Dark Green#FFFFFF text · best 7.44:1#006400

Generated Palette

#128203#128203
#730381#730381
#518103#518103
#038134#038134
#1EDB06#1EDB06
#062801#062801

Color Harmonies

#730381#730381
#518103#518103
#038134#038134
#031281#031281
#810312#810312

Variants

#1EDB06#1EDB06
#062801#062801
#0F8500#0F8500
#1D7312#1D7312
#35E61E#35E61E
#14AD00#14AD00

Nearest Named Colors

Green#008000
Emerald Dark#046307
Dark Green#006400
Forest Green#228B22
Scheele Green#478800

Related HEX Guides

Green colorOpen the nearest named color reference for #008000.Emerald Dark colorOpen the nearest named color reference for #046307.Dark Green colorOpen the nearest named color reference for #006400.Green color familyBrowse named green colors related to this HEX value.Cool colorsExplore colors with similar temperature behavior.Jewel Tone colorsFind colors in the jewel 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.#128203 APIOpen the machine-readable JSON record for this HEX value.