Colors Encyclopedia

HEX atlas value

#135D21

#135D21 is a cool green HEX color close to Emerald Dark. According to Colors Encyclopedia, it converts to RGB 19, 93, 33, HSL 131, 66%, 22%, has luminance 0.0808, and belongs to the dark and jewel tone groups.

greencooldarkjewel-tone
#135D21 Sample readable text
HEX #135D21
RGB rgb(19, 93, 33)
HSL hsl(131 66% 22%)
CMYK cmyk(80, 0, 65, 64)
Luminance 0.0808
Contrast Black 2.62:1White 8.03:1

CSS

--color-135d21: #135D21;
.background-135d21 { background-color: #135D21; }
.text-135d21 { color: #135D21; }

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
Luminance0.0808
Black text2.62:1AA Fail
White text8.03:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#135D21","rgb":[19,93,33],"hsl":[131,66,22],"cmyk":[80,0,65,64],"luminance":0.0808,"contrast":{"black":2.62,"white":8.03}}
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":8.03,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"#031106","hex":"#031106","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.09,"contrastWhite":19.34,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#5D1350","hex":"#5D1350","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.67,"contrastWhite":12.54,"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":"#1F5128","hex":"#1F5128","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.27,"contrastWhite":9.27,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#2B5D13","hex":"#2B5D13","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.68,"contrastWhite":7.84,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["cool green","dark","jewel tone","dark green","jewel tone green","Emerald Dark 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/135d21.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/emerald-dark.json","https://www.colorsencyclopedia.com/api/colors/british-racing-green.json","https://www.colorsencyclopedia.com/api/colors/dark-green.json"]}
Harmonies
{"complementary":"#5D1350","analogous":["#2B5D13","#135D46"],"triadic":["#21135D","#5D2113"],"tetradic":["#132B5D","#5D1350","#5D4613"],"splitComplementary":["#46135D","#5D132B"],"monochromatic":["#23A93B","#135D21","#031106"]}
Variants
{"light":"#23A93B","dark":"#031106","saturated":"#076919","desaturated":"#1F5128","pastel":"#3BB551","neon":"#00991C"}
Nearest named colors
[{"slug":"emerald-dark","name":"Emerald Dark","hex":"#046307","distance":30.610455730027933},{"slug":"british-racing-green","name":"British Racing Green","hex":"#004225","distance":33.25657829663178},{"slug":"dark-green","name":"Dark Green","hex":"#006400","distance":38.71692136521188},{"slug":"terre-verte","name":"Terre Verte","hex":"#385E0F","distance":41.15823125451335},{"slug":"hunter-green","name":"Hunter Green","hex":"#355E3B","distance":42.81354925721529}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #135D21

#135D21 is classified as a cool green value with dark and jewel tone visual character. #135D21 is visually closest to Emerald Dark, a named green color with HEX #046307.

The RGB channels are 19, 93, and 33, with green carrying the strongest channel weight. In HSL, the hue is 131deg 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 0.0808, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 30.61, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.62:1AA Fail
White text8.03:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #135D21 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.62:1 · Fail
White text#FFFFFF8.03:1 · AAA

Accessible Alternatives

#031106#FFFFFF text · best 19.34:1#031106
#5D1350#FFFFFF text · best 12.54:1#5D1350
British Racing Green#FFFFFF text · best 11.63:1#004225
#1F5128#FFFFFF text · best 9.27:1#1F5128
#2B5D13#FFFFFF text · best 7.84:1#2B5D13

Generated Palette

#135D21#135D21
#5D1350#5D1350
#2B5D13#2B5D13
#135D46#135D46
#23A93B#23A93B
#031106#031106

Color Harmonies

#5D1350#5D1350
#2B5D13#2B5D13
#135D46#135D46
#21135D#21135D
#5D2113#5D2113

Variants

#23A93B#23A93B
#031106#031106
#076919#076919
#1F5128#1F5128
#3BB551#3BB551
#00991C#00991C

Nearest Named Colors

Emerald Dark#046307
British Racing Green#004225
Dark Green#006400
Terre Verte#385E0F
Hunter Green#355E3B

Related HEX Guides

Emerald Dark colorOpen the nearest named color reference for #046307.British Racing Green colorOpen the nearest named color reference for #004225.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.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.#135D21 APIOpen the machine-readable JSON record for this HEX value.