HEX atlas value

#238B40

#238B40 is a cool green HEX color close to Sea Green. According to Colors Encyclopedia, it converts to RGB 35, 139, 64, HSL 137, 60%, 34%, has luminance 0.1919, and belongs to the earth tone and jewel tone groups.

green cool earth-tone jewel-tone

#238B40 Sample readable text

HEX #238B40

RGB rgb(35, 139, 64)

HSL hsl(137 60% 34%)

CMYK cmyk(75, 0, 54, 45)

Luminance 0.1919

Contrast Black 4.84:1White 4.34:1

CSS

--color-238b40: #238B40;
.background-238b40 { background-color: #238B40; }
.text-238b40 { color: #238B40; }

Luminance0.1919

Black text4.84:1AA Pass

White text4.34:1AA 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":"#238B40","rgb":[35,139,64],"hsl":[137,60,34],"cmyk":[75,0,54,45],"luminance":0.1919,"contrast":{"black":4.84,"white":4.34}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":4.84,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.34,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#10411E","hex":"#10411E","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.8,"contrastWhite":11.69,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#3BCE65","hex":"#3BCE65","family":"green","bestTextColor":"#000000","contrastBlack":10.2,"contrastWhite":2.06,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#8B236D","hex":"#8B236D","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.56,"contrastWhite":8.2,"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":"#109E38","hex":"#109E38","family":"green","bestTextColor":"#000000","contrastBlack":5.97,"contrastWhite":3.52,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]

AI context

{"semanticGroups":["cool green","earth tone","jewel tone","earth tone green","jewel tone green","Sea Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/238b40.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/sea-green.json","https://www.colorsencyclopedia.com/api/colors/forest-green.json","https://www.colorsencyclopedia.com/api/colors/traffic-green.json"]}

Harmonies

{"complementary":"#8B236D","analogous":["#398B23","#238B74"],"triadic":["#40238B","#8B4023"],"tetradic":["#23398B","#8B236D","#8B7423"],"splitComplementary":["#74238B","#8B2339"],"monochromatic":["#3BCE65","#238B40","#10411E"]}

Variants

{"light":"#3BCE65","dark":"#10411E","saturated":"#109E38","desaturated":"#367848","pastel":"#67C582","neon":"#00D63D"}

Nearest named colors

[{"slug":"sea-green","name":"Sea Green","hex":"#2E8B57","distance":25.495097567963924},{"slug":"forest-green","name":"Forest Green","hex":"#228B22","distance":30.01666203960727},{"slug":"traffic-green","name":"Traffic Green","hex":"#008450","distance":39.11521443121589},{"slug":"fern-green","name":"Fern Green","hex":"#4F7942","distance":47.58150901348127},{"slug":"hunter-green","name":"Hunter Green","hex":"#355E3B","distance":48.72371086031933}]

HEX meaning and use

About #238B40

#238B40 is classified as a cool green value with earth tone and jewel tone visual character. #238B40 is visually closest to Sea Green, a named green color with HEX #2E8B57.

The RGB channels are 35, 139, and 64, with green carrying the strongest channel weight. In HSL, the hue is 137deg with 60% 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 0.1919, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 25.50, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.84:1AA Pass

White text4.34:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #238B40 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.84:1 · AA

White text#FFFFFF4.34:1 · Fail

Accessible Alternatives

#10411E#FFFFFF text · best 11.69:1#10411E

#3BCE65#000000 text · best 10.2:1#3BCE65

#8B236D#FFFFFF text · best 8.2:1#8B236D

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

#109E38#000000 text · best 5.97:1#109E38

Generated Palette

#238B40#238B40

#8B236D#8B236D

#398B23#398B23

#238B74#238B74

#3BCE65#3BCE65

#10411E#10411E

Color Harmonies

#8B236D#8B236D

#398B23#398B23

#238B74#238B74

#40238B#40238B

#8B4023#8B4023

Variants

#3BCE65#3BCE65

#10411E#10411E

#109E38#109E38

#367848#367848

#67C582#67C582

#00D63D#00D63D

Nearest Named Colors

Sea Green#2E8B57

Forest Green#228B22

Traffic Green#008450

Fern Green#4F7942

Hunter Green#355E3B

#238B40

CSS

Machine-Readable HEX Data (JSON)

About #238B40

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides