HEX atlas value

#63A121

#63A121 is a cool green HEX color close to Olive Drab. According to Colors Encyclopedia, it converts to RGB 99, 161, 33, HSL 89, 66%, 38%, has luminance 0.2825, and belongs to the jewel tone group.

green cool jewel-tone

#63A121 Sample readable text

HEX #63A121

RGB rgb(99, 161, 33)

HSL hsl(89 66% 38%)

CMYK cmyk(39, 0, 80, 37)

Luminance 0.2825

Contrast Black 6.65:1White 3.16:1

CSS

--color-63a121: #63A121;
.background-63a121 { background-color: #63A121; }
.text-63a121 { color: #63A121; }

Luminance0.2825

Black text6.65:1AA Pass

White text3.16:1AA 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":"#63A121","rgb":[99,161,33],"hsl":[89,66,38],"cmyk":[39,0,80,37],"luminance":0.2825,"contrast":{"black":6.65,"white":3.16}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":6.65,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.16,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#91D945","hex":"#91D945","family":"green","bestTextColor":"#000000","contrastBlack":12.22,"contrastWhite":1.72,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#5F21A1","hex":"#5F21A1","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":2.22,"contrastWhite":9.47,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#345511","hex":"#345511","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.45,"contrastWhite":8.56,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Kelly Green","hex":"#4CBB17","family":"green","bestTextColor":"#000000","contrastBlack":8.43,"contrastWhite":2.49,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#64B60C","hex":"#64B60C","family":"green","bestTextColor":"#000000","contrastBlack":8.24,"contrastWhite":2.55,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]

AI context

{"semanticGroups":["cool green","jewel tone","jewel tone green","Olive Drab adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/63a121.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/kelly-green.json"]}

Harmonies

{"complementary":"#5F21A1","analogous":["#A19F21","#23A121"],"triadic":["#2163A1","#A12163"],"tetradic":["#21A19F","#5F21A1","#A12123"],"splitComplementary":["#2123A1","#9F21A1"],"monochromatic":["#91D945","#63A121","#345511"]}

Variants

{"light":"#91D945","dark":"#345511","saturated":"#64B60C","desaturated":"#628C36","pastel":"#A2D171","neon":"#79EB00"}

Nearest named colors

[{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":20.71231517720798},{"slug":"olive-leaf","name":"Olive Leaf","hex":"#6B8E23","distance":20.71231517720798},{"slug":"kelly-green","name":"Kelly Green","hex":"#4CBB17","distance":36.124783736376884},{"slug":"olive-green","name":"Olive Green","hex":"#708238","distance":40.7308237088326},{"slug":"avocado","name":"Avocado","hex":"#568203","distance":45.05552130427524}]

HEX meaning and use

About #63A121

#63A121 is classified as a cool green value with jewel tone visual character. #63A121 is visually closest to Olive Drab, a named green color with HEX #6B8E23.

The RGB channels are 99, 161, and 33, with green carrying the strongest channel weight. In HSL, the hue is 89deg 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 rich accent palettes. Its luminance is 0.2825, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 20.71, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text6.65:1AA Pass

White text3.16:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #63A121 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006.65:1 · AA

White text#FFFFFF3.16:1 · Fail

Accessible Alternatives

#91D945#000000 text · best 12.22:1#91D945

#5F21A1#FFFFFF text · best 9.47:1#5F21A1

#345511#FFFFFF text · best 8.56:1#345511

Kelly Green#000000 text · best 8.43:1#4CBB17

#64B60C#000000 text · best 8.24:1#64B60C

Generated Palette

#63A121#63A121

#5F21A1#5F21A1

#A19F21#A19F21

#23A121#23A121

#91D945#91D945

#345511#345511

Color Harmonies

#5F21A1#5F21A1

#A19F21#A19F21

#23A121#23A121

#2163A1#2163A1

#A12163#A12163

Variants

#91D945#91D945

#345511#345511

#64B60C#64B60C

#628C36#628C36

#A2D171#A2D171

#79EB00#79EB00

Nearest Named Colors

Olive Drab#6B8E23

Olive Leaf#6B8E23

Kelly Green#4CBB17

Olive Green#708238

Avocado#568203

#63A121

CSS

Machine-Readable HEX Data (JSON)

About #63A121

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides