HEX atlas value

#17311F

#17311F is a cool green HEX color close to Slate Black. According to Colors Encyclopedia, it converts to RGB 23, 49, 31, HSL 138, 36%, 14%, has luminance 0.0248, and belongs to the dark and earth tone groups.

green cool dark earth-tone

#17311F Sample readable text

HEX #17311F

RGB rgb(23, 49, 31)

HSL hsl(138 36% 14%)

CMYK cmyk(53, 0, 37, 81)

Luminance 0.0248

Contrast Black 1.5:1White 14.04:1

CSS

--color-17311f: #17311F;
.background-17311f { background-color: #17311F; }
.text-17311f { color: #17311F; }

Luminance0.0248

Black text1.5:1AA Fail

White text14.04:1AA 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":"#17311F","rgb":[23,49,31],"hsl":[138,36,14],"cmyk":[53,0,37,81],"luminance":0.0248,"contrast":{"black":1.5,"white":14.04}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":1.5,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":14.04,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"Black","hex":"#000000","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1,"contrastWhite":21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Matte Black","hex":"#1A1A1A","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.21,"contrastWhite":17.41,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Carbon Fiber","hex":"#1C1C1C","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.23,"contrastWhite":17.05,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#311729","hex":"#311729","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.29,"contrastWhite":16.33,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Raisin","hex":"#242124","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.32,"contrastWhite":15.93,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["cool green","dark","earth tone","dark green","earth tone green","Slate Black adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","dark theme accents","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/17311f.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/slate-black.json","https://www.colorsencyclopedia.com/api/colors/raisin.json","https://www.colorsencyclopedia.com/api/colors/carbon-fiber.json"]}

Harmonies

{"complementary":"#311729","analogous":["#1C3117","#17312B"],"triadic":["#1F1731","#311F17"],"tetradic":["#171C31","#311729","#312B17"],"splitComplementary":["#2B1731","#31171C"],"monochromatic":["#346F46","#17311F","#000000"]}

Variants

{"light":"#346F46","dark":"#000000","saturated":"#0F381B","desaturated":"#1F2922","pastel":"#4F785B","neon":"#007022"}

Nearest named colors

[{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":20.663978319771825},{"slug":"raisin","name":"Raisin","hex":"#242124","distance":21.213203435596427},{"slug":"carbon-fiber","name":"Carbon Fiber","hex":"#1C1C1C","distance":21.79449471770337},{"slug":"rubber","name":"Rubber","hex":"#2A2725","distance":22.293496809607955},{"slug":"matte-black","name":"Matte Black","hex":"#1A1A1A","distance":23.727621035409346}]

HEX meaning and use

About #17311F

#17311F is classified as a cool green value with dark and earth tone visual character. #17311F is visually closest to Slate Black, a named gray color with HEX #26282A.

The RGB channels are 23, 49, and 31, with green carrying the strongest channel weight. In HSL, the hue is 138deg with 36% saturation and 14% lightness, so this page treats it as a moderate-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 natural palettes. Its luminance is 0.0248, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 20.66, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.5:1AA Fail

White text14.04:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #17311F needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.5:1 · Fail

White text#FFFFFF14.04:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000

Matte Black#FFFFFF text · best 17.41:1#1A1A1A

Carbon Fiber#FFFFFF text · best 17.05:1#1C1C1C

#311729#FFFFFF text · best 16.33:1#311729

Raisin#FFFFFF text · best 15.93:1#242124

Generated Palette

#17311F#17311F

#311729#311729

#1C3117#1C3117

#17312B#17312B

#346F46#346F46

Black#000000

Color Harmonies

#311729#311729

#1C3117#1C3117

#17312B#17312B

#1F1731#1F1731

#311F17#311F17

Variants

#346F46#346F46

Black#000000

#0F381B#0F381B

#1F2922#1F2922

#4F785B#4F785B

#007022#007022

Nearest Named Colors

Slate Black#26282A

Raisin#242124

Carbon Fiber#1C1C1C

Rubber#2A2725

Matte Black#1A1A1A

#17311F

CSS

Machine-Readable HEX Data (JSON)

About #17311F

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides