HEX atlas value

#B5D42B

#B5D42B is a cool green HEX color close to Peridot. According to Colors Encyclopedia, it converts to RGB 181, 212, 43, HSL 71, 66%, 50%, has luminance 0.5709, and belongs to the balanced group.

#B5D42B Sample readable text
HEX #B5D42B
RGB rgb(181, 212, 43)
HSL hsl(71 66% 50%)
CMYK cmyk(15, 0, 80, 17)
Luminance 0.5709
Contrast Black 12.42:1White 1.69:1

CSS

--color-b5d42b: #B5D42B;
.background-b5d42b { background-color: #B5D42B; }
.text-b5d42b { color: #B5D42B; }

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
Luminance0.5709
Black text12.42:1AA Pass
White text1.69:1AA 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":"#B5D42B","rgb":[181,212,43],"hsl":[71,66,50],"cmyk":[15,0,80,17],"luminance":0.5709,"contrast":{"black":12.42,"white":1.69}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":12.42,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.69,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#C7F00F","hex":"#C7F00F","family":"green","bestTextColor":"#000000","contrastBlack":15.9,"contrastWhite":1.32,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#D0E378","hex":"#D0E378","family":"green","bestTextColor":"#000000","contrastBlack":14.94,"contrastWhite":1.41,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Pear","hex":"#D1E231","family":"yellow","bestTextColor":"#000000","contrastBlack":14.63,"contrastWhite":1.44,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Yellow Green","hex":"#9ACD32","family":"green","bestTextColor":"#000000","contrastBlack":11.15,"contrastWhite":1.88,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#61D42B","hex":"#61D42B","family":"green","bestTextColor":"#000000","contrastBlack":10.96,"contrastWhite":1.92,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]
AI context
{"semanticGroups":["cool green","balanced","balanced green","Peridot adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/b5d42b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/peridot.json","https://www.colorsencyclopedia.com/api/colors/acid-green.json","https://www.colorsencyclopedia.com/api/colors/yellow-green.json"]}
Harmonies
{"complementary":"#4A2BD4","analogous":["#D49E2B","#61D42B"],"triadic":["#2BB5D4","#D42BB5"],"tetradic":["#2BD49E","#4A2BD4","#D42B61"],"splitComplementary":["#2B61D4","#9E2BD4"],"monochromatic":["#D0E378","#B5D42B","#74871C"]}
Variants
{"light":"#D0E378","dark":"#74871C","saturated":"#C7F00F","desaturated":"#A3B847","pastel":"#D4E09F","neon":"#D8FF29"}
Nearest named colors
[{"slug":"peridot","name":"Peridot","hex":"#B4C424","distance":17.4928556845359},{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":27.477263328068172},{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":28.75760768909681},{"slug":"pear","name":"Pear","hex":"#D1E231","distance":31.874754901018456},{"slug":"old-gold","name":"Old Gold","hex":"#CFB53B","distance":43.508619835614184}]

HEX meaning and use

About #B5D42B

#B5D42B is classified as a cool green value with balanced visual character. #B5D42B is visually closest to Peridot, a named yellow color with HEX #B4C424.

The RGB channels are 181, 212, and 43, with green carrying the strongest channel weight. In HSL, the hue is 71deg with 66% saturation and 50% lightness, so this page treats it as a moderate-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 botanical and wellness palettes. Its luminance is 0.5709, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 17.49, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text12.42:1AA Pass
White text1.69:1AA Fail

AA text options: #000000, #1A1A1A, #36454F.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #B5D42B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000012.42:1 · AAA
White text#FFFFFF1.69:1 · Fail

Accessible Alternatives

#C7F00F#000000 text · best 15.9:1#C7F00F
#D0E378#000000 text · best 14.94:1#D0E378
Pear#000000 text · best 14.63:1#D1E231
Yellow Green#000000 text · best 11.15:1#9ACD32
#61D42B#000000 text · best 10.96:1#61D42B

Generated Palette

#B5D42B#B5D42B
#4A2BD4#4A2BD4
#D49E2B#D49E2B
#61D42B#61D42B
#D0E378#D0E378
#74871C#74871C

Color Harmonies

#4A2BD4#4A2BD4
#D49E2B#D49E2B
#61D42B#61D42B
#2BB5D4#2BB5D4
#D42BB5#D42BB5

Variants

#D0E378#D0E378
#74871C#74871C
#C7F00F#C7F00F
#A3B847#A3B847
#D4E09F#D4E09F
#D8FF29#D8FF29

Nearest Named Colors