HEX atlas value

#640F0C

#640F0C is a warm red HEX color close to Barn Red. According to Colors Encyclopedia, it converts to RGB 100, 15, 12, HSL 2, 79%, 22%, has luminance 0.0308, and belongs to the dark group.

red warm dark

#640F0C Sample readable text

HEX #640F0C

RGB rgb(100, 15, 12)

HSL hsl(2 79% 22%)

CMYK cmyk(0, 85, 88, 61)

Luminance 0.0308

Contrast Black 1.62:1White 13:1

CSS

--color-640f0c: #640F0C;
.background-640f0c { background-color: #640F0C; }
.text-640f0c { color: #640F0C; }

Luminance0.0308

Black text1.62:1AA Fail

White text13:1AA 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":"#640F0C","rgb":[100,15,12],"hsl":[2,79,22],"cmyk":[0,85,88,61],"luminance":0.0308,"contrast":{"black":1.62,"white":13}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":1.62,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":13,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"#120302","hex":"#120302","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.04,"contrastWhite":20.19,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Oxblood","hex":"#4A0000","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.29,"contrastWhite":16.25,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#581A18","hex":"#581A18","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.58,"contrastWhite":13.32,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#640C35","hex":"#640C35","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.65,"contrastWhite":12.76,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#700400","hex":"#700400","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.71,"contrastWhite":12.31,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["warm red","dark","dark red","Barn Red adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","dark theme accents","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/640f0c.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/barn-red.json","https://www.colorsencyclopedia.com/api/colors/garnet-red.json","https://www.colorsencyclopedia.com/api/colors/oxblood.json"]}

Harmonies

{"complementary":"#0C6164","analogous":["#640C35","#643B0C"],"triadic":["#0C640F","#0F0C64"],"tetradic":["#35640C","#0C6164","#3B0C64"],"splitComplementary":["#0C643B","#0C3564"],"monochromatic":["#B71B15","#640F0C","#120302"]}

Variants

{"light":"#B71B15","dark":"#120302","saturated":"#700400","desaturated":"#581A18","pastel":"#C5302B","neon":"#990500"}

Nearest named colors

[{"slug":"barn-red","name":"Barn Red","hex":"#7C0A02","distance":26.476404589747453},{"slug":"garnet-red","name":"Garnet Red","hex":"#6E1F26","distance":32.12475680841802},{"slug":"oxblood","name":"Oxblood","hex":"#4A0000","distance":32.32645975048923},{"slug":"maroon","name":"Maroon","hex":"#800000","distance":33.95585369269929},{"slug":"burgundy","name":"Burgundy","hex":"#800020","distance":37.53664875824692}]

HEX meaning and use

About #640F0C

#640F0C is classified as a warm red value with dark visual character. #640F0C is visually closest to Barn Red, a named red color with HEX #7C0A02.

The RGB channels are 100, 15, and 12, with red carrying the strongest channel weight. In HSL, the hue is 2deg with 79% saturation and 22% lightness, so this page treats it as a high-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 dark theme accents. Its luminance is 0.0308, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 26.48, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.62:1AA Fail

White text13:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #640F0C needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.62:1 · Fail

White text#FFFFFF13:1 · AAA

Accessible Alternatives

#120302#FFFFFF text · best 20.19:1#120302

Oxblood#FFFFFF text · best 16.25:1#4A0000

#581A18#FFFFFF text · best 13.32:1#581A18

#640C35#FFFFFF text · best 12.76:1#640C35

#700400#FFFFFF text · best 12.31:1#700400

Generated Palette

#640F0C#640F0C

#0C6164#0C6164

#640C35#640C35

#643B0C#643B0C

#B71B15#B71B15

#120302#120302

Color Harmonies

#0C6164#0C6164

#640C35#640C35

#643B0C#643B0C

#0C640F#0C640F

#0F0C64#0F0C64

Variants

#B71B15#B71B15

#120302#120302

#700400#700400

#581A18#581A18

#C5302B#C5302B

#990500#990500

Nearest Named Colors

Barn Red#7C0A02

Garnet Red#6E1F26

Oxblood#4A0000

Maroon#800000

Burgundy#800020

#640F0C

CSS

Machine-Readable HEX Data (JSON)

About #640F0C

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides