HEX atlas value

#288639

#288639 is a cool green HEX color close to Forest Green. According to Colors Encyclopedia, it converts to RGB 40, 134, 57, HSL 131, 54%, 34%, has luminance 0.178, and belongs to the earth tone and jewel tone groups.

green cool earth-tone jewel-tone

#288639 Sample readable text

HEX #288639

RGB rgb(40, 134, 57)

HSL hsl(131 54% 34%)

CMYK cmyk(70, 0, 57, 47)

Luminance 0.178

Contrast Black 4.56:1White 4.61:1

CSS

--color-288639: #288639;
.background-288639 { background-color: #288639; }
.text-288639 { color: #288639; }

Luminance0.178

Black text4.56:1AA Pass

White text4.61:1AA Pass

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":"#288639","rgb":[40,134,57],"hsl":[131,54,34],"cmyk":[70,0,57,47],"luminance":0.178,"contrast":{"black":4.56,"white":4.61}}

WCAG

{"AA":["#000000","#FFFFFF"],"AAA":[]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":4.56,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.61,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#133F1B","hex":"#133F1B","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.75,"contrastWhite":11.97,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#43C75B","hex":"#43C75B","family":"green","bestTextColor":"#000000","contrastBlack":9.56,"contrastWhite":2.2,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#862874","hex":"#862874","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.57,"contrastWhite":8.17,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Hunter Green","hex":"#355E3B","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.82,"contrastWhite":7.46,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"#3B7245","hex":"#3B7245","family":"green","bestTextColor":"#FFFFFF","contrastBlack":3.68,"contrastWhite":5.71,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]

AI context

{"semanticGroups":["cool green","earth tone","jewel tone","earth tone green","jewel tone green","Forest Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000","#FFFFFF"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/288639.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/forest-green.json","https://www.colorsencyclopedia.com/api/colors/sea-green.json","https://www.colorsencyclopedia.com/api/colors/fern-green.json"]}

Harmonies

{"complementary":"#862874","analogous":["#468628","#288668"],"triadic":["#392886","#863928"],"tetradic":["#284686","#862874","#866828"],"splitComplementary":["#682886","#862846"],"monochromatic":["#43C75B","#288639","#133F1B"]}

Variants

{"light":"#43C75B","dark":"#133F1B","saturated":"#15992D","desaturated":"#3B7245","pastel":"#6EBF7D","neon":"#00D627"}

Nearest named colors

[{"slug":"forest-green","name":"Forest Green","hex":"#228B22","distance":24.289915602982237},{"slug":"sea-green","name":"Sea Green","hex":"#2E8B57","distance":31},{"slug":"fern-green","name":"Fern Green","hex":"#4F7942","distance":42.08325082500163},{"slug":"hunter-green","name":"Hunter Green","hex":"#355E3B","distance":42.1070065428546},{"slug":"traffic-green","name":"Traffic Green","hex":"#008450","distance":46.184412955021955}]

HEX meaning and use

About #288639

#288639 is classified as a cool green value with earth tone and jewel tone visual character. #288639 is visually closest to Forest Green, a named green color with HEX #228B22.

The RGB channels are 40, 134, and 57, with green carrying the strongest channel weight. In HSL, the hue is 131deg with 54% saturation and 34% 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 natural palettes. Its luminance is 0.178, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 24.29, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.56:1AA Pass

White text4.61:1AA Pass

AA text options: #000000, #FFFFFF.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #288639 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.56:1 · AA

White text#FFFFFF4.61:1 · AA

Accessible Alternatives

#133F1B#FFFFFF text · best 11.97:1#133F1B

#43C75B#000000 text · best 9.56:1#43C75B

#862874#FFFFFF text · best 8.17:1#862874

Hunter Green#FFFFFF text · best 7.46:1#355E3B

#3B7245#FFFFFF text · best 5.71:1#3B7245

Generated Palette

#288639#288639

#862874#862874

#468628#468628

#288668#288668

#43C75B#43C75B

#133F1B#133F1B

Color Harmonies

#862874#862874

#468628#468628

#288668#288668

#392886#392886

#863928#863928

Variants

#43C75B#43C75B

#133F1B#133F1B

#15992D#15992D

#3B7245#3B7245

#6EBF7D#6EBF7D

#00D627#00D627

Nearest Named Colors

Forest Green#228B22

Sea Green#2E8B57

Fern Green#4F7942

Hunter Green#355E3B

Traffic Green#008450

#288639

CSS

Machine-Readable HEX Data (JSON)

About #288639

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides