Colors Encyclopedia

HEX atlas value

#A4C251

#A4C251 is a cool green HEX color close to Yellow Green. According to Colors Encyclopedia, it converts to RGB 164, 194, 81, HSL 76, 48%, 54%, has luminance 0.4707, and belongs to the earth tone group.

greencoolearth-tone
#A4C251 Sample readable text
HEX #A4C251
RGB rgb(164, 194, 81)
HSL hsl(76 48% 54%)
CMYK cmyk(15, 0, 58, 24)
Luminance 0.4707
Contrast Black 10.41:1White 2.02:1

CSS

--color-a4c251: #A4C251;
.background-a4c251 { background-color: #A4C251; }
.text-a4c251 { color: #A4C251; }

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
Luminance0.4707
Black text10.41:1AA Pass
White text2.02:1AA 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":"#A4C251","rgb":[164,194,81],"hsl":[76,48,54],"cmyk":[15,0,58,24],"luminance":0.4707,"contrast":{"black":10.41,"white":2.02}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":10.41,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.02,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#C8DA95","hex":"#C8DA95","family":"green","bestTextColor":"#000000","contrastBlack":13.92,"contrastWhite":1.51,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#B0DC38","hex":"#B0DC38","family":"green","bestTextColor":"#000000","contrastBlack":13.14,"contrastWhite":1.6,"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":"Pistachio","hex":"#93C572","family":"green","bestTextColor":"#000000","contrastBlack":10.47,"contrastWhite":2.01,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Dark Khaki","hex":"#BDB76B","family":"yellow","bestTextColor":"#000000","contrastBlack":10.15,"contrastWhite":2.07,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]
AI context
{"semanticGroups":["cool green","earth tone","earth tone green","Yellow Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/a4c251.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/yellow-green.json","https://www.colorsencyclopedia.com/api/colors/brass.json","https://www.colorsencyclopedia.com/api/colors/brushed-brass.json"]}
Harmonies
{"complementary":"#6F51C2","analogous":["#C2A851","#6CC251"],"triadic":["#51A4C2","#C251A4"],"tetradic":["#51C2A8","#6F51C2","#C2516C"],"splitComplementary":["#516CC2","#A851C2"],"monochromatic":["#C8DA95","#A4C251","#708830"]}
Variants
{"light":"#C8DA95","dark":"#708830","saturated":"#B0DC38","desaturated":"#98A86B","pastel":"#D2DBB8","neon":"#CBFF3D"}
Nearest named colors
[{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":34.38022687534217},{"slug":"brass","name":"Brass","hex":"#B5A642","distance":36.02776706930364},{"slug":"brushed-brass","name":"Brushed Brass","hex":"#B5A642","distance":36.02776706930364},{"slug":"pistachio","name":"Pistachio","hex":"#93C572","distance":37.242448899072144},{"slug":"dark-khaki","name":"Dark Khaki","hex":"#BDB76B","distance":37.70941526992961}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #A4C251

#A4C251 is classified as a cool green value with earth tone visual character. #A4C251 is visually closest to Yellow Green, a named green color with HEX #9ACD32.

The RGB channels are 164, 194, and 81, with green carrying the strongest channel weight. In HSL, the hue is 76deg with 48% saturation and 54% 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 natural palettes. Its luminance is 0.4707, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 34.38, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text10.41:1AA Pass
White text2.02:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #A4C251 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000010.41:1 · AAA
White text#FFFFFF2.02:1 · Fail

Accessible Alternatives

#C8DA95#000000 text · best 13.92:1#C8DA95
#B0DC38#000000 text · best 13.14:1#B0DC38
Yellow Green#000000 text · best 11.15:1#9ACD32
Pistachio#000000 text · best 10.47:1#93C572
Dark Khaki#000000 text · best 10.15:1#BDB76B

Generated Palette

#A4C251#A4C251
#6F51C2#6F51C2
#C2A851#C2A851
#6CC251#6CC251
#C8DA95#C8DA95
#708830#708830

Color Harmonies

#6F51C2#6F51C2
#C2A851#C2A851
#6CC251#6CC251
#51A4C2#51A4C2
#C251A4#C251A4

Variants

#C8DA95#C8DA95
#708830#708830
#B0DC38#B0DC38
#98A86B#98A86B
#D2DBB8#D2DBB8
#CBFF3D#CBFF3D

Nearest Named Colors

Yellow Green#9ACD32
Brass#B5A642
Brushed Brass#B5A642
Pistachio#93C572
Dark Khaki#BDB76B

Related HEX Guides

Yellow Green colorOpen the nearest named color reference for #9ACD32.Brass colorOpen the nearest named color reference for #B5A642.Brushed Brass colorOpen the nearest named color reference for #B5A642.Green color familyBrowse named green colors related to this HEX value.Cool colorsExplore colors with similar temperature behavior.Earth Tone colorsFind colors in the earth 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.#A4C251 APIOpen the machine-readable JSON record for this HEX value.