HEX atlas value

#388A51

#388A51 is a cool green HEX color close to Sea Green. According to Colors Encyclopedia, it converts to RGB 56, 138, 81, HSL 138, 42%, 38%, has luminance 0.1961, and belongs to the earth tone group.

green cool earth-tone

#388A51 Sample readable text

HEX #388A51

RGB rgb(56, 138, 81)

HSL hsl(138 42% 38%)

CMYK cmyk(59, 0, 41, 46)

Luminance 0.1961

Contrast Black 4.92:1White 4.27:1

CSS

--color-388a51: #388A51;
.background-388a51 { background-color: #388A51; }
.text-388a51 { color: #388A51; }

Luminance0.1961

Black text4.92:1AA Pass

White text4.27:1AA 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":"#388A51","rgb":[56,138,81],"hsl":[138,42,38],"cmyk":[59,0,41,46],"luminance":0.1961,"contrast":{"black":4.92,"white":4.27}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":4.92,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.27,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#1E482A","hex":"#1E482A","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.02,"contrastWhite":10.42,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#60BE7C","hex":"#60BE7C","family":"green","bestTextColor":"#000000","contrastBlack":9.15,"contrastWhite":2.29,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#8A3871","hex":"#8A3871","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.88,"contrastWhite":7.28,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"#239F48","hex":"#239F48","family":"green","bestTextColor":"#000000","contrastBlack":6.12,"contrastWhite":3.43,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"#4E7459","hex":"#4E7459","family":"green","bestTextColor":"#FFFFFF","contrastBlack":3.97,"contrastWhite":5.3,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]

AI context

{"semanticGroups":["cool green","earth tone","earth tone green","Sea Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/388a51.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/sea-green.json","https://www.colorsencyclopedia.com/api/colors/epoxy-green.json","https://www.colorsencyclopedia.com/api/colors/viridian.json"]}

Harmonies

{"complementary":"#8A3871","analogous":["#488A38","#388A79"],"triadic":["#51388A","#8A5138"],"tetradic":["#38488A","#8A3871","#8A7938"],"splitComplementary":["#79388A","#8A3848"],"monochromatic":["#60BE7C","#388A51","#1E482A"]}

Variants

{"light":"#60BE7C","dark":"#1E482A","saturated":"#239F48","desaturated":"#4E7459","pastel":"#87BA96","neon":"#00EB46"}

Nearest named colors

[{"slug":"sea-green","name":"Sea Green","hex":"#2E8B57","distance":11.704699910719626},{"slug":"epoxy-green","name":"Epoxy Green","hex":"#4E8A57","distance":22.80350850198276},{"slug":"viridian","name":"Viridian","hex":"#40826D","distance":30.199337741083},{"slug":"fern-green","name":"Fern Green","hex":"#4F7942","distance":32.29551052391029},{"slug":"alexandrite","name":"Alexandrite","hex":"#3D8B74","distance":35.369478367654786}]

HEX meaning and use

About #388A51

#388A51 is classified as a cool green value with earth tone visual character. #388A51 is visually closest to Sea Green, a named green color with HEX #2E8B57.

The RGB channels are 56, 138, and 81, with green carrying the strongest channel weight. In HSL, the hue is 138deg with 42% 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 natural palettes. Its luminance is 0.1961, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 11.70, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.92:1AA Pass

White text4.27:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #388A51 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.92:1 · AA

White text#FFFFFF4.27:1 · Fail

Accessible Alternatives

#1E482A#FFFFFF text · best 10.42:1#1E482A

#60BE7C#000000 text · best 9.15:1#60BE7C

#8A3871#FFFFFF text · best 7.28:1#8A3871

#239F48#000000 text · best 6.12:1#239F48

#4E7459#FFFFFF text · best 5.3:1#4E7459

Generated Palette

#388A51#388A51

#8A3871#8A3871

#488A38#488A38

#388A79#388A79

#60BE7C#60BE7C

#1E482A#1E482A

Color Harmonies

#8A3871#8A3871

#488A38#488A38

#388A79#388A79

#51388A#51388A

#8A5138#8A5138

Variants

#60BE7C#60BE7C

#1E482A#1E482A

#239F48#239F48

#4E7459#4E7459

#87BA96#87BA96

#00EB46#00EB46

Nearest Named Colors

Sea Green#2E8B57

Epoxy Green#4E8A57

Viridian#40826D

Fern Green#4F7942

Alexandrite#3D8B74

#388A51

CSS

Machine-Readable HEX Data (JSON)

About #388A51

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides