HEX atlas value

#99E52E

#99E52E is a cool green HEX color close to Yellow Green. According to Colors Encyclopedia, it converts to RGB 153, 229, 46, HSL 85, 78%, 54%, has luminance 0.6301, and belongs to the vibrant group.

green cool vibrant

#99E52E Sample readable text

HEX #99E52E

RGB rgb(153, 229, 46)

HSL hsl(85 78% 54%)

CMYK cmyk(33, 0, 80, 10)

Luminance 0.6301

Contrast Black 13.6:1White 1.54:1

CSS

--color-99e52e: #99E52E;
.background-99e52e { background-color: #99E52E; }
.text-99e52e { color: #99E52E; }

Luminance0.6301

Black text13.6:1AA Pass

White text1.54:1AA 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":"#99E52E","rgb":[153,229,46],"hsl":[85,78,54],"cmyk":[33,0,80,10],"luminance":0.6301,"contrast":{"black":13.6,"white":1.54}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":13.6,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.54,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"Green Yellow","hex":"#ADFF2F","family":"green","bestTextColor":"#000000","contrastBlack":17.12,"contrastWhite":1.23,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#9DFF14","hex":"#9DFF14","family":"green","bestTextColor":"#000000","contrastBlack":16.75,"contrastWhite":1.25,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#C1EF80","hex":"#C1EF80","family":"green","bestTextColor":"#000000","contrastBlack":15.93,"contrastWhite":1.32,"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":"#E5D62E","hex":"#E5D62E","family":"yellow","bestTextColor":"#000000","contrastBlack":13.99,"contrastWhite":1.5,"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/99e52e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/yellow-green.json","https://www.colorsencyclopedia.com/api/colors/green-yellow.json","https://www.colorsencyclopedia.com/api/colors/peridot.json"]}

Harmonies

{"complementary":"#7A2EE5","analogous":["#E5D62E","#3DE52E"],"triadic":["#2E99E5","#E52E99"],"tetradic":["#2EE5D6","#7A2EE5","#E52E3D"],"splitComplementary":["#2E3DE5","#D62EE5"],"monochromatic":["#C1EF80","#99E52E","#68A314"]}

Variants

{"light":"#C1EF80","dark":"#68A314","saturated":"#9DFF14","desaturated":"#95CB48","pastel":"#CFEBA8","neon":"#AEFF3D"}

Nearest named colors

[{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":24.351591323771842},{"slug":"green-yellow","name":"Green Yellow","hex":"#ADFF2F","distance":32.817678162843876},{"slug":"peridot","name":"Peridot","hex":"#B4C424","distance":43.79497688091638},{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":48.7134478352744},{"slug":"pear","name":"Pear","hex":"#D1E231","distance":56.16048432839589}]

HEX meaning and use

About #99E52E

#99E52E is classified as a cool green value with vibrant visual character. #99E52E is visually closest to Yellow Green, a named green color with HEX #9ACD32.

The RGB channels are 153, 229, and 46, with green carrying the strongest channel weight. In HSL, the hue is 85deg with 78% saturation and 54% 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 0.6301, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 24.35, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text13.6:1AA Pass

White text1.54:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #99E52E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000013.6:1 · AAA

White text#FFFFFF1.54:1 · Fail

Accessible Alternatives

Green Yellow#000000 text · best 17.12:1#ADFF2F

#9DFF14#000000 text · best 16.75:1#9DFF14

#C1EF80#000000 text · best 15.93:1#C1EF80

Pear#000000 text · best 14.63:1#D1E231

#E5D62E#000000 text · best 13.99:1#E5D62E

Generated Palette

#99E52E#99E52E

#7A2EE5#7A2EE5

#E5D62E#E5D62E

#3DE52E#3DE52E

#C1EF80#C1EF80

#68A314#68A314

Color Harmonies

#7A2EE5#7A2EE5

#E5D62E#E5D62E

#3DE52E#3DE52E

#2E99E5#2E99E5

#E52E99#E52E99

Variants

#C1EF80#C1EF80

#68A314#68A314

#9DFF14#9DFF14

#95CB48#95CB48

#CFEBA8#CFEBA8

#AEFF3D#AEFF3D

Nearest Named Colors

Yellow Green#9ACD32

Green Yellow#ADFF2F

Peridot#B4C424

Acid Green#B0BF1A

Pear#D1E231

#99E52E

CSS

Machine-Readable HEX Data (JSON)

About #99E52E

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides