HEX atlas value

#3F5A4B

#3F5A4B is a cool green HEX color close to Basalt. According to Colors Encyclopedia, it converts to RGB 63, 90, 75, HSL 147, 18%, 30%, has luminance 0.0888, and belongs to the muted and earth tone groups.

green cool muted earth-tone

#3F5A4B Sample readable text

HEX #3F5A4B

RGB rgb(63, 90, 75)

HSL hsl(147 18% 30%)

CMYK cmyk(30, 0, 17, 65)

Luminance 0.0888

Contrast Black 2.78:1White 7.56:1

CSS

--color-3f5a4b: #3F5A4B;
.background-3f5a4b { background-color: #3F5A4B; }
.text-3f5a4b { color: #3F5A4B; }

Luminance0.0888

Black text2.78:1AA Fail

White text7.56:1AA 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":"#3F5A4B","rgb":[63,90,75],"hsl":[147,18,30],"cmyk":[30,0,17,65],"luminance":0.0888,"contrast":{"black":2.78,"white":7.56}}

WCAG

{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":2.78,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":7.56,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"#19241E","hex":"#19241E","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.31,"contrastWhite":16.01,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#5A3F4E","hex":"#5A3F4E","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.26,"contrastWhite":9.31,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Iron","hex":"#48494B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":2.33,"contrastWhite":9.01,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Dark Slate Grey","hex":"#2F4F4F","family":"cyan","bestTextColor":"#FFFFFF","contrastBlack":2.35,"contrastWhite":8.93,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Asphalt Gray","hex":"#4B4B4B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":2.41,"contrastWhite":8.72,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["cool green","muted","earth tone","muted green","earth tone green","Basalt adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","muted interface themes","natural palettes","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/3f5a4b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/basalt.json","https://www.colorsencyclopedia.com/api/colors/asphalt-gray.json","https://www.colorsencyclopedia.com/api/colors/iron.json"]}

Harmonies

{"complementary":"#5A3F4E","analogous":["#405A3F","#3F5A59"],"triadic":["#4B3F5A","#5A4B3F"],"tetradic":["#3F405A","#5A3F4E","#5A593F"],"splitComplementary":["#593F5A","#5A3F40"],"monochromatic":["#649078","#3F5A4B","#19241E"]}

Variants

{"light":"#649078","dark":"#19241E","saturated":"#2E6B49","desaturated":"#4D4D4D","pastel":"#89908C","neon":"#00C257"}

Nearest named colors

[{"slug":"basalt","name":"Basalt","hex":"#4B4C4C","distance":18.466185312619388},{"slug":"asphalt-gray","name":"Asphalt Gray","hex":"#4B4B4B","distance":19.209372712298546},{"slug":"iron","name":"Iron","hex":"#48494B","distance":19.235384061671343},{"slug":"hunter-green","name":"Hunter Green","hex":"#355E3B","distance":19.28730152198591},{"slug":"dark-slate-gray","name":"Dark Slate Gray","hex":"#2F4F4F","distance":19.82422760159901}]

HEX meaning and use

About #3F5A4B

#3F5A4B is classified as a cool green value with muted and earth tone visual character. #3F5A4B is visually closest to Basalt, a named gray color with HEX #4B4C4C.

The RGB channels are 63, 90, and 75, with green carrying the strongest channel weight. In HSL, the hue is 147deg with 18% saturation and 30% lightness, so this page treats it as a low-saturation, dark 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 muted interface themes. Its luminance is 0.0888, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 18.47, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.78:1AA Fail

White text7.56:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #3F5A4B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.78:1 · Fail

White text#FFFFFF7.56:1 · AAA

Accessible Alternatives

#19241E#FFFFFF text · best 16.01:1#19241E

#5A3F4E#FFFFFF text · best 9.31:1#5A3F4E

Iron#FFFFFF text · best 9.01:1#48494B

Dark Slate Grey#FFFFFF text · best 8.93:1#2F4F4F

Asphalt Gray#FFFFFF text · best 8.72:1#4B4B4B

Generated Palette

#3F5A4B#3F5A4B

#5A3F4E#5A3F4E

#405A3F#405A3F

#3F5A59#3F5A59

#649078#649078

#19241E#19241E

Color Harmonies

#5A3F4E#5A3F4E

#405A3F#405A3F

#3F5A59#3F5A59

#4B3F5A#4B3F5A

#5A4B3F#5A4B3F

Variants

#649078#649078

#19241E#19241E

#2E6B49#2E6B49

#4D4D4D#4D4D4D

#89908C#89908C

#00C257#00C257

Nearest Named Colors

Basalt#4B4C4C

Asphalt Gray#4B4B4B

Iron#48494B

Hunter Green#355E3B

Dark Slate Gray#2F4F4F

#3F5A4B

CSS

Machine-Readable HEX Data (JSON)

About #3F5A4B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides