HEX atlas value

#D42E2B

#D42E2B is a warm red HEX color close to Persian Red. According to Colors Encyclopedia, it converts to RGB 212, 46, 43, HSL 1, 66%, 50%, has luminance 0.1613, and belongs to the balanced group.

red warm balanced

#D42E2B Sample readable text

HEX #D42E2B

RGB rgb(212, 46, 43)

HSL hsl(1 66% 50%)

CMYK cmyk(0, 78, 80, 17)

Luminance 0.1613

Contrast Black 4.23:1White 4.97:1

CSS

--color-d42e2b: #D42E2B;
.background-d42e2b { background-color: #D42E2B; }
.text-d42e2b { color: #D42E2B; }

Luminance0.1613

Black text4.23:1AA Fail

White text4.97:1AA 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":"#D42E2B","rgb":[212,46,43],"hsl":[1,66,50],"cmyk":[0,78,80,17],"luminance":0.1613,"contrast":{"black":4.23,"white":4.97}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":4.23,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.97,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#2BD1D4","hex":"#2BD1D4","family":"cyan","bestTextColor":"#000000","contrastBlack":11.17,"contrastWhite":1.88,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#871E1C","hex":"#871E1C","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.23,"contrastWhite":9.41,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#E37978","hex":"#E37978","family":"red","bestTextColor":"#000000","contrastBlack":7.27,"contrastWhite":2.89,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#D4822B","hex":"#D4822B","family":"orange","bestTextColor":"#000000","contrastBlack":7.03,"contrastWhite":2.99,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Cinnabar","hex":"#E44D2E","family":"red","bestTextColor":"#000000","contrastBlack":5.4,"contrastWhite":3.89,"wcagAA":["#000000"],"wcagAAA":[]}]

AI context

{"semanticGroups":["warm red","balanced","balanced red","Persian Red adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/d42e2b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/persian-red.json","https://www.colorsencyclopedia.com/api/colors/poppy-red.json","https://www.colorsencyclopedia.com/api/colors/vermilion.json"]}

Harmonies

{"complementary":"#2BD1D4","analogous":["#D42B7D","#D4822B"],"triadic":["#2BD42E","#2E2BD4"],"tetradic":["#7DD42B","#2BD1D4","#822BD4"],"splitComplementary":["#2BD482","#2B7DD4"],"monochromatic":["#E37978","#D42E2B","#871E1C"]}

Variants

{"light":"#E37978","dark":"#871E1C","saturated":"#F0130F","desaturated":"#B84947","pastel":"#E0A09F","neon":"#FF2C29"}

Nearest named colors

[{"slug":"persian-red","name":"Persian Red","hex":"#CC3333","distance":12.36931687685298},{"slug":"poppy-red","name":"Poppy Red","hex":"#DC343B","distance":18.867962264113206},{"slug":"vermilion","name":"Vermilion","hex":"#E34234","distance":26.570660511172846},{"slug":"crimson","name":"Crimson","hex":"#DC143C","distance":32.07802986469088},{"slug":"cinnabar","name":"Cinnabar","hex":"#E44D2E","distance":35.014282800023196}]

HEX meaning and use

About #D42E2B

#D42E2B is classified as a warm red value with balanced visual character. #D42E2B is visually closest to Persian Red, a named red color with HEX #CC3333.

The RGB channels are 212, 46, and 43, with red carrying the strongest channel weight. In HSL, the hue is 1deg with 66% saturation and 50% 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 high-attention visual states. Its luminance is 0.1613, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 12.37, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text4.23:1AA Fail

White text4.97:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #D42E2B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000004.23:1 · Fail

White text#FFFFFF4.97:1 · AA

Accessible Alternatives

#2BD1D4#000000 text · best 11.17:1#2BD1D4

#871E1C#FFFFFF text · best 9.41:1#871E1C

#E37978#000000 text · best 7.27:1#E37978

#D4822B#000000 text · best 7.03:1#D4822B

Cinnabar#000000 text · best 5.4:1#E44D2E

Generated Palette

#D42E2B#D42E2B

#2BD1D4#2BD1D4

#D42B7D#D42B7D

#D4822B#D4822B

#E37978#E37978

#871E1C#871E1C

Color Harmonies

#2BD1D4#2BD1D4

#D42B7D#D42B7D

#D4822B#D4822B

#2BD42E#2BD42E

#2E2BD4#2E2BD4

Variants

#E37978#E37978

#871E1C#871E1C

#F0130F#F0130F

#B84947#B84947

#E0A09F#E0A09F

#FF2C29#FF2C29

Nearest Named Colors

Persian Red#CC3333

Poppy Red#DC343B

Vermilion#E34234

Crimson#DC143C

Cinnabar#E44D2E

#D42E2B

CSS

Machine-Readable HEX Data (JSON)

About #D42E2B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides