HEX atlas value

#99D42B

#99D42B is a cool green HEX color close to Yellow Green. According to Colors Encyclopedia, it converts to RGB 153, 212, 43, HSL 81, 66%, 50%, has luminance 0.5403, and belongs to the balanced group.

green cool balanced

#99D42B Sample readable text

HEX #99D42B

RGB rgb(153, 212, 43)

HSL hsl(81 66% 50%)

CMYK cmyk(28, 0, 80, 17)

Luminance 0.5403

Contrast Black 11.81:1White 1.78:1

CSS

--color-99d42b: #99D42B;
.background-99d42b { background-color: #99D42B; }
.text-99d42b { color: #99D42B; }

Luminance0.5403

Black text11.81:1AA Pass

White text1.78:1AA 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":"#99D42B","rgb":[153,212,43],"hsl":[81,66,50],"cmyk":[28,0,80,17],"luminance":0.5403,"contrast":{"black":11.81,"white":1.78}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":11.81,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.78,"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":"#A1F00F","hex":"#A1F00F","family":"green","bestTextColor":"#000000","contrastBlack":14.99,"contrastWhite":1.4,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#BEE378","hex":"#BEE378","family":"green","bestTextColor":"#000000","contrastBlack":14.45,"contrastWhite":1.45,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Toxic Green","hex":"#61DE2A","family":"green","bestTextColor":"#000000","contrastBlack":11.99,"contrastWhite":1.75,"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"]}]

AI context

{"semanticGroups":["cool green","balanced","balanced green","Yellow Green 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/99d42b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/yellow-green.json","https://www.colorsencyclopedia.com/api/colors/peridot.json","https://www.colorsencyclopedia.com/api/colors/acid-green.json"]}

Harmonies

{"complementary":"#662BD4","analogous":["#D4BA2B","#45D42B"],"triadic":["#2B99D4","#D42B99"],"tetradic":["#2BD4BA","#662BD4","#D42B45"],"splitComplementary":["#2B45D4","#BA2BD4"],"monochromatic":["#BEE378","#99D42B","#62871C"]}

Variants

{"light":"#BEE378","dark":"#62871C","saturated":"#A1F00F","desaturated":"#90B847","pastel":"#C9E09F","neon":"#B4FF29"}

Nearest named colors

[{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":9.9498743710662},{"slug":"peridot","name":"Peridot","hex":"#B4C424","distance":32.155870381627054},{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":35.482389998420345},{"slug":"green-yellow","name":"Green Yellow","hex":"#ADFF2F","distance":47.59201613716318},{"slug":"toxic-green","name":"Toxic Green","hex":"#61DE2A","distance":56.894639466297704}]

HEX meaning and use

About #99D42B

#99D42B is classified as a cool green value with balanced visual character. #99D42B is visually closest to Yellow Green, a named green color with HEX #9ACD32.

The RGB channels are 153, 212, and 43, with green carrying the strongest channel weight. In HSL, the hue is 81deg 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 0.5403, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 9.95, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text11.81:1AA Pass

White text1.78:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #99D42B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000011.81:1 · AAA

White text#FFFFFF1.78:1 · Fail

Accessible Alternatives

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

#A1F00F#000000 text · best 14.99:1#A1F00F

#BEE378#000000 text · best 14.45:1#BEE378

Toxic Green#000000 text · best 11.99:1#61DE2A

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

Generated Palette

#99D42B#99D42B

#662BD4#662BD4

#D4BA2B#D4BA2B

#45D42B#45D42B

#BEE378#BEE378

#62871C#62871C

Color Harmonies

#662BD4#662BD4

#D4BA2B#D4BA2B

#45D42B#45D42B

#2B99D4#2B99D4

#D42B99#D42B99

Variants

#BEE378#BEE378

#62871C#62871C

#A1F00F#A1F00F

#90B847#90B847

#C9E09F#C9E09F

#B4FF29#B4FF29

Nearest Named Colors

Yellow Green#9ACD32

Peridot#B4C424

Acid Green#B0BF1A

Green Yellow#ADFF2F

Toxic Green#61DE2A

#99D42B

CSS

Machine-Readable HEX Data (JSON)

About #99D42B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides