HEX atlas value

#D20404

#D20404 is a warm red HEX color close to Traffic Red. According to Colors Encyclopedia, it converts to RGB 210, 4, 4, HSL 0, 96%, 42%, has luminance 0.138, and belongs to the vibrant group.

red warm vibrant

#D20404 Sample readable text

HEX #D20404

RGB rgb(210, 4, 4)

HSL hsl(0 96% 42%)

CMYK cmyk(0, 98, 98, 18)

Luminance 0.138

Contrast Black 3.76:1White 5.59:1

CSS

--color-d20404: #D20404;
.background-d20404 { background-color: #D20404; }
.text-d20404 { color: #D20404; }

Luminance0.138

Black text3.76:1AA Fail

White text5.59:1AA 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":"#D20404","rgb":[210,4,4],"hsl":[0,96,42],"cmyk":[0,98,98,18],"luminance":0.138,"contrast":{"black":3.76,"white":5.59}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3.76,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":5.59,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#780202","hex":"#780202","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.81,"contrastWhite":11.62,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#04D2D2","hex":"#04D2D2","family":"cyan","bestTextColor":"#000000","contrastBlack":11.15,"contrastWhite":1.88,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#BA1C1C","hex":"#BA1C1C","family":"red","bestTextColor":"#FFFFFF","contrastBlack":3.27,"contrastWhite":6.42,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"Venetian Red","hex":"#C80815","family":"red","bestTextColor":"#FFFFFF","contrastBlack":3.5,"contrastWhite":6,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"#D26B04","hex":"#D26B04","family":"orange","bestTextColor":"#000000","contrastBlack":5.85,"contrastWhite":3.59,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]

AI context

{"semanticGroups":["warm red","vibrant","vibrant red","Traffic Red adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/d20404.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/traffic-red.json","https://www.colorsencyclopedia.com/api/colors/venetian-red.json","https://www.colorsencyclopedia.com/api/colors/signal-red.json"]}

Harmonies

{"complementary":"#04D2D2","analogous":["#D2046B","#D26B04"],"triadic":["#04D204","#0404D2"],"tetradic":["#6BD204","#04D2D2","#6B04D2"],"splitComplementary":["#04D26B","#046BD2"],"monochromatic":["#FB3737","#D20404","#780202"]}

Variants

{"light":"#FB3737","dark":"#780202","saturated":"#D60000","desaturated":"#BA1C1C","pastel":"#EF6767","neon":"#FF0000"}

Nearest named colors

[{"slug":"traffic-red","name":"Traffic Red","hex":"#CC0605","distance":6.4031242374328485},{"slug":"venetian-red","name":"Venetian Red","hex":"#C80815","distance":20.12461179749811},{"slug":"signal-red","name":"Signal Red","hex":"#E60000","distance":20.784609690826528},{"slug":"cadmium-red","name":"Cadmium Red","hex":"#E30022","distance":34.713109915419565},{"slug":"cherry-red","name":"Cherry Red","hex":"#D2042D","distance":41}]

HEX meaning and use

About #D20404

#D20404 is classified as a warm red value with vibrant visual character. #D20404 is visually closest to Traffic Red, a named red color with HEX #CC0605.

The RGB channels are 210, 4, and 4, with red carrying the strongest channel weight. In HSL, the hue is 0deg with 96% saturation and 42% lightness, so this page treats it as a high-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-energy accents. Its luminance is 0.138, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 6.40, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.76:1AA Fail

White text5.59:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #D20404 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.76:1 · Fail

White text#FFFFFF5.59:1 · AA

Accessible Alternatives

#780202#FFFFFF text · best 11.62:1#780202

#04D2D2#000000 text · best 11.15:1#04D2D2

#BA1C1C#FFFFFF text · best 6.42:1#BA1C1C

Venetian Red#FFFFFF text · best 6:1#C80815

#D26B04#000000 text · best 5.85:1#D26B04

Generated Palette

#D20404#D20404

#04D2D2#04D2D2

#D2046B#D2046B

#D26B04#D26B04

#FB3737#FB3737

#780202#780202

Color Harmonies

#04D2D2#04D2D2

#D2046B#D2046B

#D26B04#D26B04

#04D204#04D204

#0404D2#0404D2

Variants

#FB3737#FB3737

#780202#780202

#D60000#D60000

#BA1C1C#BA1C1C

#EF6767#EF6767

Red#FF0000

Nearest Named Colors

Traffic Red#CC0605

Venetian Red#C80815

Signal Red#E60000

Cadmium Red#E30022

Cherry Red#D2042D

#D20404

CSS

Machine-Readable HEX Data (JSON)

About #D20404

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides