HEX atlas value

#A2CA21

#A2CA21 is a cool green HEX color close to Yellow Green. According to Colors Encyclopedia, it converts to RGB 162, 202, 33, HSL 74, 72%, 46%, has luminance 0.5003, and belongs to the vibrant group.

green cool vibrant

#A2CA21 Sample readable text

HEX #A2CA21

RGB rgb(162, 202, 33)

HSL hsl(74 72% 46%)

CMYK cmyk(20, 0, 84, 21)

Luminance 0.5003

Contrast Black 11.01:1White 1.91:1

CSS

--color-a2ca21: #A2CA21;
.background-a2ca21 { background-color: #A2CA21; }
.text-a2ca21 { color: #A2CA21; }

Luminance0.5003

Black text11.01:1AA Pass

White text1.91:1AA 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

Structured sections

Color systems

{"hex":"#A2CA21","rgb":[162,202,33],"hsl":[74,72,46],"cmyk":[20,0,84,21],"luminance":0.5003,"contrast":{"black":11.01,"white":1.91}}

WCAG

{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":11.01,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.91,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#C6E561","hex":"#C6E561","family":"green","bestTextColor":"#000000","contrastBlack":14.78,"contrastWhite":1.42,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#B0E407","hex":"#B0E407","family":"green","bestTextColor":"#000000","contrastBlack":13.95,"contrastWhite":1.51,"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":"Peridot","hex":"#B4C424","family":"yellow","bestTextColor":"#000000","contrastBlack":10.86,"contrastWhite":1.93,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Acid Green","hex":"#B0BF1A","family":"yellow","bestTextColor":"#000000","contrastBlack":10.31,"contrastWhite":2.04,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

{"semanticGroups":["cool green","vibrant","vibrant green","Yellow Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/a2ca21.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/yellow-green.json","https://www.colorsencyclopedia.com/api/colors/acid-green.json","https://www.colorsencyclopedia.com/api/colors/peridot.json"]}

Harmonies

{"complementary":"#4821CA","analogous":["#CA9D21","#4ECA21"],"triadic":["#21A2CA","#CA21A2"],"tetradic":["#21CA9D","#4821CA","#CA214E"],"splitComplementary":["#214ECA","#9D21CA"],"monochromatic":["#C6E561","#A2CA21","#637B14"]}

Variants

{"light":"#C6E561","dark":"#637B14","saturated":"#B0E407","desaturated":"#95B03B","pastel":"#CCDF8B","neon":"#C8FF14"}

Nearest named colors

[{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":19.026297590440446},{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":19.131126469708992},{"slug":"peridot","name":"Peridot","hex":"#B4C424","distance":19.209372712298546},{"slug":"brass","name":"Brass","hex":"#B5A642","distance":52.40229002629561},{"slug":"brushed-brass","name":"Brushed Brass","hex":"#B5A642","distance":52.40229002629561}]

HEX meaning and use

About #A2CA21

#A2CA21 is classified as a cool green value with vibrant visual character. #A2CA21 is visually closest to Yellow Green, a named green color with HEX #9ACD32.

The RGB channels are 162, 202, and 33, with green carrying the strongest channel weight. In HSL, the hue is 74deg with 72% saturation and 46% 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 high-energy accents. Its luminance is 0.5003, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 19.03, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text11.01:1AA Pass

White text1.91:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #A2CA21 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000011.01:1 · AAA

White text#FFFFFF1.91:1 · Fail

Accessible Alternatives

#C6E561#000000 text · best 14.78:1#C6E561

#B0E407#000000 text · best 13.95:1#B0E407

Yellow Green#000000 text · best 11.15:1#9ACD32

Peridot#000000 text · best 10.86:1#B4C424

Acid Green#000000 text · best 10.31:1#B0BF1A

Generated Palette

#A2CA21#A2CA21

#4821CA#4821CA

#CA9D21#CA9D21

#4ECA21#4ECA21

#C6E561#C6E561

#637B14#637B14

Color Harmonies

#4821CA#4821CA

#CA9D21#CA9D21

#4ECA21#4ECA21

#21A2CA#21A2CA

#CA21A2#CA21A2

Variants

#C6E561#C6E561

#637B14#637B14

#B0E407#B0E407

#95B03B#95B03B

#CCDF8B#CCDF8B

#C8FF14#C8FF14

Nearest Named Colors

Yellow Green#9ACD32

Acid Green#B0BF1A

Peridot#B4C424

Brass#B5A642

Brushed Brass#B5A642

#A2CA21

CSS

Machine-Readable HEX Data (JSON)

About #A2CA21

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides