HEX atlas value

#90A121

#90A121 is a warm yellow HEX color close to Olive Drab. According to Colors Encyclopedia, it converts to RGB 144, 161, 33, HSL 68, 66%, 38%, has luminance 0.3153, and belongs to the balanced group.

yellow warm balanced

#90A121 Sample readable text

HEX #90A121

RGB rgb(144, 161, 33)

HSL hsl(68 66% 38%)

CMYK cmyk(11, 0, 80, 37)

Luminance 0.3153

Contrast Black 7.31:1White 2.87:1

CSS

--color-90a121: #90A121;
.background-90a121 { background-color: #90A121; }
.text-90a121 { color: #90A121; }

Luminance0.3153

Black text7.31:1AA Pass

White text2.87:1AA 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":"#90A121","rgb":[144,161,33],"hsl":[68,66,38],"cmyk":[11,0,80,37],"luminance":0.3153,"contrast":{"black":7.31,"white":2.87}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":7.31,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.87,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#C5D945","hex":"#C5D945","family":"yellow","bestTextColor":"#000000","contrastBlack":13.39,"contrastWhite":1.57,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#3221A1","hex":"#3221A1","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.87,"contrastWhite":11.24,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Yellow Green","hex":"#9ACD32","family":"green","bestTextColor":"#000000","contrastBlack":11.15,"contrastWhite":1.88,"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"]},{"name":"#9FB60C","hex":"#9FB60C","family":"yellow","bestTextColor":"#000000","contrastBlack":9.17,"contrastWhite":2.29,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

{"semanticGroups":["warm yellow","balanced","balanced yellow","Olive Drab adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","highlight and warning systems"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/90a121.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/olive-drab.json","https://www.colorsencyclopedia.com/api/colors/olive-leaf.json","https://www.colorsencyclopedia.com/api/colors/acid-green.json"]}

Harmonies

{"complementary":"#3221A1","analogous":["#A17221","#50A121"],"triadic":["#2190A1","#A12190"],"tetradic":["#21A172","#3221A1","#A12150"],"splitComplementary":["#2150A1","#7221A1"],"monochromatic":["#C5D945","#90A121","#4C5511"]}

Variants

{"light":"#C5D945","dark":"#4C5511","saturated":"#9FB60C","desaturated":"#808C36","pastel":"#C4D171","neon":"#CBEB00"}

Nearest named colors

[{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":41.641325627314025},{"slug":"olive-leaf","name":"Olive Leaf","hex":"#6B8E23","distance":41.641325627314025},{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":44.41846462902562},{"slug":"yellow-green","name":"Yellow Green","hex":"#9ACD32","distance":48.218253804964775},{"slug":"olive","name":"Olive","hex":"#808000","distance":49.33558553417604}]

HEX meaning and use

About #90A121

#90A121 is classified as a warm yellow value with balanced visual character. #90A121 is visually closest to Olive Drab, a named green color with HEX #6B8E23.

The RGB channels are 144, 161, and 33, with green carrying the strongest channel weight. In HSL, the hue is 68deg with 66% saturation and 38% 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 highlight and warning systems. Its luminance is 0.3153, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 41.64, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text7.31:1AA Pass

White text2.87:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #90A121 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000007.31:1 · AAA

White text#FFFFFF2.87:1 · Fail

Accessible Alternatives

#C5D945#000000 text · best 13.39:1#C5D945

#3221A1#FFFFFF text · best 11.24:1#3221A1

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

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

#9FB60C#000000 text · best 9.17:1#9FB60C

Generated Palette

#90A121#90A121

#3221A1#3221A1

#A17221#A17221

#50A121#50A121

#C5D945#C5D945

#4C5511#4C5511

Color Harmonies

#3221A1#3221A1

#A17221#A17221

#50A121#50A121

#2190A1#2190A1

#A12190#A12190

Variants

#C5D945#C5D945

#4C5511#4C5511

#9FB60C#9FB60C

#808C36#808C36

#C4D171#C4D171

#CBEB00#CBEB00

Nearest Named Colors

Olive Drab#6B8E23

Olive Leaf#6B8E23

Acid Green#B0BF1A

Yellow Green#9ACD32

Olive#808000

#90A121

CSS

Machine-Readable HEX Data (JSON)

About #90A121

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides