Colors Encyclopedia

HEX atlas value

#C21E56

#C21E56 is a warm pink HEX color close to Rose Red. According to Colors Encyclopedia, it converts to RGB 194, 30, 86, HSL 340, 73%, 44%, has luminance 0.1307, and belongs to the vibrant group.

pinkwarmvibrant
#C21E56 Sample readable text
HEX #C21E56
RGB rgb(194, 30, 86)
HSL hsl(340 73% 44%)
CMYK cmyk(0, 85, 56, 24)
Luminance 0.1307
Contrast Black 3.61:1White 5.81:1

CSS

--color-c21e56: #C21E56;
.background-c21e56 { background-color: #C21E56; }
.text-c21e56 { color: #C21E56; }

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
Luminance0.1307
Black text3.61:1AA Fail
White text5.81:1AA 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":"#C21E56","rgb":[194,30,86],"hsl":[340,73,44],"cmyk":[0,85,56,24],"luminance":0.1307,"contrast":{"black":3.61,"white":5.81}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":3.61,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":5.81,"wcagAA":true,"wcagAAA":false}]
Accessible alternatives
[{"name":"#731232","hex":"#731232","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.86,"contrastWhite":11.28,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#1EC28C","hex":"#1EC28C","family":"green","bestTextColor":"#000000","contrastBlack":9.15,"contrastWhite":2.3,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#A9375D","hex":"#A9375D","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":3.39,"contrastWhite":6.19,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]},{"name":"#E55787","hex":"#E55787","family":"pink","bestTextColor":"#000000","contrastBlack":6.04,"contrastWhite":3.47,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"Hibiscus","hex":"#B6316C","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":3.64,"contrastWhite":5.76,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]
AI context
{"semanticGroups":["warm pink","vibrant","vibrant pink","Rose Red adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/c21e56.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/rose-red.json","https://www.colorsencyclopedia.com/api/colors/hibiscus.json","https://www.colorsencyclopedia.com/api/colors/spinel.json"]}
Harmonies
{"complementary":"#1EC28C","analogous":["#C21EA7","#C23A1E"],"triadic":["#55C21E","#1E55C2"],"tetradic":["#A7C21E","#1EC28C","#3A1EC2"],"splitComplementary":["#1EC23A","#1EA7C2"],"monochromatic":["#E55787","#C21E56","#731232"]}
Variants
{"light":"#E55787","dark":"#731232","saturated":"#DB064D","desaturated":"#A9375D","pastel":"#DE82A1","neon":"#FF0A5C"}
Nearest named colors
[{"slug":"rose-red","name":"Rose Red","hex":"#C21E56","distance":0},{"slug":"hibiscus","name":"Hibiscus","hex":"#B6316C","distance":31.448370387032774},{"slug":"spinel","name":"Spinel","hex":"#D83A56","distance":35.608987629529715},{"slug":"crimson","name":"Crimson","hex":"#DC143C","distance":38.1051177665153},{"slug":"raspberry","name":"Raspberry","hex":"#E30B5D","distance":38.71692136521188}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #C21E56

#C21E56 is classified as a warm pink value with vibrant visual character. #C21E56 is visually closest to Rose Red, a named pink color with HEX #C21E56.

The RGB channels are 194, 30, and 86, with red carrying the strongest channel weight. In HSL, the hue is 340deg with 73% saturation and 44% 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 0.1307, 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 text3.61:1AA Fail
White text5.81:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #C21E56 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.61:1 · Fail
White text#FFFFFF5.81:1 · AA

Accessible Alternatives

#731232#FFFFFF text · best 11.28:1#731232
#1EC28C#000000 text · best 9.15:1#1EC28C
#A9375D#FFFFFF text · best 6.19:1#A9375D
#E55787#000000 text · best 6.04:1#E55787
Hibiscus#FFFFFF text · best 5.76:1#B6316C

Generated Palette

Rose Red#C21E56
#1EC28C#1EC28C
#C21EA7#C21EA7
#C23A1E#C23A1E
#E55787#E55787
#731232#731232

Color Harmonies

#1EC28C#1EC28C
#C21EA7#C21EA7
#C23A1E#C23A1E
#55C21E#55C21E
#1E55C2#1E55C2

Variants

#E55787#E55787
#731232#731232
#DB064D#DB064D
#A9375D#A9375D
#DE82A1#DE82A1
#FF0A5C#FF0A5C

Nearest Named Colors

Rose Red#C21E56
Hibiscus#B6316C
Spinel#D83A56
Crimson#DC143C
Raspberry#E30B5D

Related HEX Guides

Rose Red colorOpen the nearest named color reference for #C21E56.Hibiscus colorOpen the nearest named color reference for #B6316C.Spinel colorOpen the nearest named color reference for #D83A56.Pink color familyBrowse named pink colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Vibrant colorsFind colors in the vibrant 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.#C21E56 APIOpen the machine-readable JSON record for this HEX value.