Colors Encyclopedia

HEX atlas value

#2F4F4F

#2F4F4F is a cool cyan HEX color close to Dark Slate Gray. According to Colors Encyclopedia, it converts to RGB 47, 79, 79, HSL 180, 25%, 25%, has luminance 0.0676, and belongs to the muted group.

cyancoolmuted
#2F4F4F Sample readable text
HEX #2F4F4F
RGB rgb(47, 79, 79)
HSL hsl(180 25% 25%)
CMYK cmyk(41, 0, 0, 69)
Luminance 0.0676
Contrast Black 2.35:1White 8.93:1

CSS

--color-2f4f4f: #2F4F4F;
.background-2f4f4f { background-color: #2F4F4F; }
.text-2f4f4f { color: #2F4F4F; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.0676
Black text2.35:1AA Fail
White text8.93:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#2F4F4F","rgb":[47,79,79],"hsl":[180,25,25],"cmyk":[41,0,0,69],"luminance":0.0676,"contrast":{"black":2.35,"white":8.93}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":2.35,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":8.93,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"#0D1616","hex":"#0D1616","family":"cyan","bestTextColor":"#FFFFFF","contrastBlack":1.14,"contrastWhite":18.36,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#503030","hex":"#503030","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.81,"contrastWhite":11.63,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#304050","hex":"#304050","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.97,"contrastWhite":10.64,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#3E4242","hex":"#3E4242","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":2.06,"contrastWhite":10.18,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Charcoal","hex":"#36454F","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":2.12,"contrastWhite":9.9,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["cool cyan","muted","muted cyan","Dark Slate Gray adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","muted interface themes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/2f4f4f.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/dark-slate-gray.json","https://www.colorsencyclopedia.com/api/colors/dark-slate-grey.json","https://www.colorsencyclopedia.com/api/colors/spruce.json"]}
Harmonies
{"complementary":"#503030","analogous":["#305040","#304050"],"triadic":["#503050","#505030"],"tetradic":["#403050","#503030","#405030"],"splitComplementary":["#503040","#504030"],"monochromatic":["#528989","#2F4F4F","#0D1616"]}
Variants
{"light":"#528989","dark":"#0D1616","saturated":"#225E5E","desaturated":"#3E4242","pastel":"#738C8C","neon":"#00A8A8"}
Nearest named colors
[{"slug":"dark-slate-gray","name":"Dark Slate Gray","hex":"#2F4F4F","distance":0},{"slug":"dark-slate-grey","name":"Dark Slate Grey","hex":"#2F4F4F","distance":0},{"slug":"spruce","name":"Spruce","hex":"#2E4F4F","distance":1},{"slug":"charcoal","name":"Charcoal","hex":"#36454F","distance":12.206555615733702},{"slug":"pine-needle","name":"Pine Needle","hex":"#334D41","distance":14.696938456699069}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #2F4F4F

#2F4F4F is classified as a cool cyan value with muted visual character. #2F4F4F is visually closest to Dark Slate Gray, a named cyan color with HEX #2F4F4F.

The RGB channels are 47, 79, and 79, with green carrying the strongest channel weight. In HSL, the hue is 180deg with 25% saturation and 25% 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 0.0676, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 0.00, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.35:1AA Fail
White text8.93:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #2F4F4F needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.35:1 · Fail
White text#FFFFFF8.93:1 · AAA

Accessible Alternatives

#0D1616#FFFFFF text · best 18.36:1#0D1616
#503030#FFFFFF text · best 11.63:1#503030
#304050#FFFFFF text · best 10.64:1#304050
#3E4242#FFFFFF text · best 10.18:1#3E4242
Charcoal#FFFFFF text · best 9.9:1#36454F

Generated Palette

Dark Slate Grey#2F4F4F
#503030#503030
#305040#305040
#304050#304050
#528989#528989
#0D1616#0D1616

Color Harmonies

#503030#503030
#305040#305040
#304050#304050
#503050#503050
#505030#505030

Variants

#528989#528989
#0D1616#0D1616
#225E5E#225E5E
#3E4242#3E4242
#738C8C#738C8C
#00A8A8#00A8A8

Nearest Named Colors

Dark Slate Gray#2F4F4F
Dark Slate Grey#2F4F4F
Spruce#2E4F4F
Charcoal#36454F
Pine Needle#334D41

Related HEX Guides

Dark Slate Gray colorOpen the nearest named color reference for #2F4F4F.Dark Slate Grey colorOpen the nearest named color reference for #2F4F4F.Spruce colorOpen the nearest named color reference for #2E4F4F.Cyan color familyBrowse named cyan colors related to this HEX value.Cool colorsExplore colors with similar temperature behavior.Muted colorsFind colors in the muted group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#2F4F4F APIOpen the machine-readable JSON record for this HEX value.