#CC3639#CC3639

#CC3639 is a mid, vivid red. Relative luminance 0.158; OKLCH L 56.3% C 0.187 H 24.6°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#CC3639
RGB	rgb(204, 54, 57)
HSL	hsl(359, 60%, 51%)
HSV	hsv(359, 74%, 80%)
CMYK	cmyk(0%, 73.5%, 72.1%, 20%)
CIE-LAB	lab(46.68, 58.37, 34.16)
CIE-LCH	lch(46.68, 67.63, 30.34°)
OKLab	oklab(56.29% 0.1698 0.0777)
OKLCH	oklch(56.29% 0.187 24.6)
XYZ	xyz(26.9626, 15.7752, 5.4953)
Luminance	0.1577 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CC3639 #36CCC9

analogous

#CC3684 #CC3639 #CC7E36

triadic

#CC3639 #39CC36 #3639CC

tetradic

#CC3639 #84CC36 #36CCC9 #7E36CC

square

#CC3639 #84CC36 #36CCC9 #7E36CC

split-complementary

#CC3639 #36CC7E #3684CC

monochromatic

#6C1B1D #9D282A #CC3639 #D86769 #E59899

Accessibility & contrast

On white

5.06

#CC3639 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#CC3639 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CC3639

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CC3639	#FFFFFF	#000000	##FFFFFF
##CC3639	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A38

Deuteranopia (green-blind)

#877A34

Tritanopia (blue-blind)

#E00039

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #cc3639;
/* rgb */ color: rgb(204, 54, 57);
/* oklch */ color: oklch(56.3% 0.187 24.6);

Tailwind

colors: {
  custom: {
    50: '#e4786f',
    500: '#cc3639',
    950: '#000000',
  },
}

SCSS

$custom: #cc3639;
$custom-light: #e4786f;
$custom-dark: #000000;

JSON

{
  "hex": "#cc3639",
  "rgb": {
    "r": 204,
    "g": 54,
    "b": 57
  },
  "hsl": {
    "h": 358.8,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56288,
    "c": 0.18678,
    "h": 24.6
  },
  "luminance": 0.15771
}

Semantic roles & 50–950 ramp

primary

#CC3639

secondary

#8ED0CF

accent

#E3E045

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CC3639

Body copy rendered with the generated semantic roles for this colour.

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