#C63D40#C63D40

#C63D40 is a mid, vivid red. Relative luminance 0.157; OKLCH L 56.1% C 0.174 H 23.6°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#C63D40
RGB	rgb(198, 61, 64)
HSL	hsl(359, 55%, 51%)
HSV	hsv(359, 69%, 78%)
CMYK	cmyk(0%, 69.2%, 67.7%, 22.4%)
CIE-LAB	lab(46.60, 54.27, 29.69)
CIE-LCH	lch(46.60, 61.85, 28.68°)
OKLab	oklab(56.06% 0.159 0.0694)
OKLCH	oklch(56.06% 0.174 23.6)
XYZ	xyz(25.8856, 15.7172, 6.5202)
Luminance	0.1571 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63D40 #3DC6C3

analogous

#C63D84 #C63D40 #C67E3D

triadic

#C63D40 #40C63D #3D40C6

tetradic

#C63D40 #84C63D #3DC6C3 #7E3DC6

square

#C63D40 #84C63D #3DC6C3 #7E3DC6

split-complementary

#C63D40 #3DC67E #3D84C6

monochromatic

#6A1F21 #992D2F #C63D40 #D46C6F #E29C9D

Accessibility & contrast

On white

5.07

#C63D40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#C63D40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63D40

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63D40	#FFFFFF	#000000	##FFFFFF
##C63D40	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635C3F

Deuteranopia (green-blind)

#85793C

Tritanopia (blue-blind)

#D91340

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63d40;
/* rgb */ color: rgb(198, 61, 64);
/* oklch */ color: oklch(56.1% 0.174 23.6);

Tailwind

colors: {
  custom: {
    50: '#df7b75',
    500: '#c63d40',
    950: '#000000',
  },
}

SCSS

$custom: #c63d40;
$custom-light: #df7b75;
$custom-dark: #000000;

JSON

{
  "hex": "#c63d40",
  "rgb": {
    "r": 198,
    "g": 61,
    "b": 64
  },
  "hsl": {
    "h": 358.686,
    "s": 54.582,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56061,
    "c": 0.17351,
    "h": 23.6
  },
  "luminance": 0.15713
}

Semantic roles & 50–950 ramp

primary

#C63D40

secondary

#91CECC

accent

#DEDB4A

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63D40

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

Preview Lab → · Contrast checker → · Palette generator →