HEX atlas value

#139A57

#139A57 is a cool green HEX color close to Shamrock. According to Colors Encyclopedia, it converts to RGB 19, 154, 87, HSL 150, 78%, 34%, has luminance 0.2394, and belongs to the jewel tone group.

#139A57 Sample readable text
HEX #139A57
RGB rgb(19, 154, 87)
HSL hsl(150 78% 34%)
CMYK cmyk(88, 0, 44, 40)
Luminance 0.2394
Contrast Black 5.79:1White 3.63:1

CSS

--color-139a57: #139A57;
.background-139a57 { background-color: #139A57; }
.text-139a57 { color: #139A57; }

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
Luminance0.2394
Black text5.79:1AA Pass
White text3.63:1AA Fail
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":"#139A57","rgb":[19,154,87],"hsl":[150,78,34],"cmyk":[88,0,44,40],"luminance":0.2394,"contrast":{"black":5.79,"white":3.63}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":5.79,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.63,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#25E485","hex":"#25E485","family":"green","bestTextColor":"#000000","contrastBlack":12.51,"contrastWhite":1.68,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#094929","hex":"#094929","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2,"contrastWhite":10.52,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#9A1357","hex":"#9A1357","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.6,"contrastWhite":8.06,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#00AD57","hex":"#00AD57","family":"green","bestTextColor":"#000000","contrastBlack":7.12,"contrastWhite":2.95,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Jade","hex":"#00A86B","family":"green","bestTextColor":"#000000","contrastBlack":6.81,"contrastWhite":3.08,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]
AI context
{"semanticGroups":["cool green","jewel tone","jewel tone green","Shamrock adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/139a57.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/shamrock.json","https://www.colorsencyclopedia.com/api/colors/traffic-green.json","https://www.colorsencyclopedia.com/api/colors/sea-green.json"]}
Harmonies
{"complementary":"#9A1357","analogous":["#139A13","#139A9A"],"triadic":["#57139A","#9A5713"],"tetradic":["#13139A","#9A1357","#9A9A13"],"splitComplementary":["#9A139A","#9A1313"],"monochromatic":["#25E485","#139A57","#094929"]}
Variants
{"light":"#25E485","dark":"#094929","saturated":"#00AD57","desaturated":"#268757","pastel":"#55D896","neon":"#00D66B"}
Nearest named colors
[{"slug":"shamrock","name":"Shamrock","hex":"#009E60","distance":21.400934559032695},{"slug":"traffic-green","name":"Traffic Green","hex":"#008450","distance":29.899832775452108},{"slug":"sea-green","name":"Sea Green","hex":"#2E8B57","distance":30.886890422961002},{"slug":"jade","name":"Jade","hex":"#00A86B","distance":30.93541659651604},{"slug":"pine-green","name":"Pine Green","hex":"#01796F","distance":44.598206241955516}]

HEX meaning and use

About #139A57

#139A57 is classified as a cool green value with jewel tone visual character. #139A57 is visually closest to Shamrock, a named green color with HEX #009E60.

The RGB channels are 19, 154, and 87, with green carrying the strongest channel weight. In HSL, the hue is 150deg with 78% saturation and 34% lightness, so this page treats it as a high-saturation, mid-lightness 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 0.2394, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 21.40, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.79:1AA Pass
White text3.63:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #139A57 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.79:1 · AA
White text#FFFFFF3.63:1 · Fail

Accessible Alternatives

#25E485#000000 text · best 12.51:1#25E485
#094929#FFFFFF text · best 10.52:1#094929
#9A1357#FFFFFF text · best 8.06:1#9A1357
#00AD57#000000 text · best 7.12:1#00AD57
Jade#000000 text · best 6.81:1#00A86B

Generated Palette

#139A57#139A57
#9A1357#9A1357
#139A13#139A13
#139A9A#139A9A
#25E485#25E485
#094929#094929

Color Harmonies

#9A1357#9A1357
#139A13#139A13
#139A9A#139A9A
#57139A#57139A
#9A5713#9A5713

Variants

#25E485#25E485
#094929#094929
#00AD57#00AD57
#268757#268757
#55D896#55D896
#00D66B#00D66B

Nearest Named Colors