#CC3940#CC3940

#CC3940 is a mid, vivid red. Relative luminance 0.161; OKLCH L 56.7% C 0.183 H 22.8°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#CC3940
RGB	rgb(204, 57, 64)
HSL	hsl(357, 59%, 51%)
HSV	hsv(357, 72%, 80%)
CMYK	cmyk(0%, 72.1%, 68.6%, 20%)
CIE-LAB	lab(47.15, 57.65, 30.61)
CIE-LCH	lch(47.15, 65.27, 27.97°)
OKLab	oklab(56.68% 0.169 0.0712)
OKLCH	oklch(56.68% 0.183 22.8)
XYZ	xyz(27.2934, 16.1379, 6.5273)
Luminance	0.1613 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CC3940 #39CCC5

analogous

#CC3989 #CC3940 #CC7B39

triadic

#CC3940 #40CC39 #3940CC

tetradic

#CC3940 #89CC39 #39CCC5 #7B39CC

square

#CC3940 #89CC39 #39CCC5 #7B39CC

split-complementary

#CC3940 #39CC7B #3989CC

monochromatic

#6E1C20 #9F292F #CC3940 #D96A6F #E59A9E

Accessibility & contrast

On white

4.97

#CC3940 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#CC3940 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CC3940

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CC3940	#FFFFFF	#000000	##FFFFFF
##CC3940	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635C3F

Deuteranopia (green-blind)

#887B3B

Tritanopia (blue-blind)

#E0003D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #cc3940;
/* rgb */ color: rgb(204, 57, 64);
/* oklch */ color: oklch(56.7% 0.183 22.8);

Tailwind

colors: {
  custom: {
    50: '#e47a75',
    500: '#cc3940',
    950: '#000000',
  },
}

SCSS

$custom: #cc3940;
$custom-light: #e47a75;
$custom-dark: #000000;

JSON

{
  "hex": "#cc3940",
  "rgb": {
    "r": 204,
    "g": 57,
    "b": 64
  },
  "hsl": {
    "h": 357.143,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56675,
    "c": 0.18341,
    "h": 22.8
  },
  "luminance": 0.16134
}

Semantic roles & 50–950 ramp

primary

#CC3940

secondary

#90D1CE

accent

#E2DB46

background

#FFF7F7

surface

#FEEEED

border

#D6C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CC3940

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

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