Colors Encyclopedia

HEX atlas value

#135D28

#135D28 is a cool green HEX color close to British Racing Green. According to Colors Encyclopedia, it converts to RGB 19, 93, 40, HSL 137, 66%, 22%, has luminance 0.0812, and belongs to the dark and jewel tone groups.

greencooldarkjewel-tone
#135D28 Sample readable text
HEX #135D28
RGB rgb(19, 93, 40)
HSL hsl(137 66% 22%)
CMYK cmyk(80, 0, 57, 64)
Luminance 0.0812
Contrast Black 2.62:1White 8:1

CSS

--color-135d28: #135D28;
.background-135d28 { background-color: #135D28; }
.text-135d28 { color: #135D28; }

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
Luminance0.0812
Black text2.62:1AA Fail
White text8:1AA 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":"#135D28","rgb":[19,93,40],"hsl":[137,66,22],"cmyk":[80,0,57,64],"luminance":0.0812,"contrast":{"black":2.62,"white":8}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":2.62,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":8,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"#031107","hex":"#031107","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.09,"contrastWhite":19.3,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#5D1348","hex":"#5D1348","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.65,"contrastWhite":12.71,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"British Racing Green","hex":"#004225","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.81,"contrastWhite":11.63,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#1F512D","hex":"#1F512D","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.27,"contrastWhite":9.23,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Pine Needle","hex":"#334D41","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.28,"contrastWhite":9.22,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["cool green","dark","jewel tone","dark green","jewel tone green","British Racing Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","rich accent palettes","dark theme accents","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/135d28.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/british-racing-green.json","https://www.colorsencyclopedia.com/api/colors/emerald-dark.json","https://www.colorsencyclopedia.com/api/colors/hunter-green.json"]}
Harmonies
{"complementary":"#5D1348","analogous":["#235D13","#135D4D"],"triadic":["#28135D","#5D2813"],"tetradic":["#13235D","#5D1348","#5D4D13"],"splitComplementary":["#4D135D","#5D1323"],"monochromatic":["#23A949","#135D28","#031107"]}
Variants
{"light":"#23A949","dark":"#031107","saturated":"#076923","desaturated":"#1F512D","pastel":"#3BB55D","neon":"#00992B"}
Nearest named colors
[{"slug":"british-racing-green","name":"British Racing Green","hex":"#004225","distance":33.15116890850155},{"slug":"emerald-dark","name":"Emerald Dark","hex":"#046307","distance":36.742346141747674},{"slug":"hunter-green","name":"Hunter Green","hex":"#355E3B","distance":38.961519477556315},{"slug":"pine-needle","name":"Pine Needle","hex":"#334D41","distance":43.64630568559039},{"slug":"bottle-green","name":"Bottle Green","hex":"#006A4E","distance":44.429719783046124}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #135D28

#135D28 is classified as a cool green value with dark and jewel tone visual character. #135D28 is visually closest to British Racing Green, a named green color with HEX #004225.

The RGB channels are 19, 93, and 40, with green carrying the strongest channel weight. In HSL, the hue is 137deg with 66% saturation and 22% 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 rich accent palettes. Its luminance is 0.0812, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 33.15, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.62:1AA Fail
White text8:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #135D28 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.62:1 · Fail
White text#FFFFFF8:1 · AAA

Accessible Alternatives

#031107#FFFFFF text · best 19.3:1#031107
#5D1348#FFFFFF text · best 12.71:1#5D1348
British Racing Green#FFFFFF text · best 11.63:1#004225
#1F512D#FFFFFF text · best 9.23:1#1F512D
Pine Needle#FFFFFF text · best 9.22:1#334D41

Generated Palette

#135D28#135D28
#5D1348#5D1348
#235D13#235D13
#135D4D#135D4D
#23A949#23A949
#031107#031107

Color Harmonies

#5D1348#5D1348
#235D13#235D13
#135D4D#135D4D
#28135D#28135D
#5D2813#5D2813

Variants

#23A949#23A949
#031107#031107
#076923#076923
#1F512D#1F512D
#3BB55D#3BB55D
#00992B#00992B

Nearest Named Colors

British Racing Green#004225
Emerald Dark#046307
Hunter Green#355E3B
Pine Needle#334D41
Bottle Green#006A4E

Related HEX Guides

British Racing Green colorOpen the nearest named color reference for #004225.Emerald Dark colorOpen the nearest named color reference for #046307.Hunter Green colorOpen the nearest named color reference for #355E3B.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.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.#135D28 APIOpen the machine-readable JSON record for this HEX value.