#C63E37#C63E37

#C63E37 is a mid, vivid red. Relative luminance 0.157; OKLCH L 56.0% C 0.174 H 27.2°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#C63E37
RGB	rgb(198, 62, 55)
HSL	hsl(3, 57%, 50%)
HSV	hsv(3, 72%, 78%)
CMYK	cmyk(0%, 68.7%, 72.2%, 22.4%)
CIE-LAB	lab(46.62, 53.43, 34.95)
CIE-LCH	lch(46.62, 63.85, 33.19°)
OKLab	oklab(56.04% 0.1545 0.0794)
OKLCH	oklch(56.04% 0.174 27.2)
XYZ	xyz(25.7037, 15.7306, 5.2966)
Luminance	0.1573 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63E37 #37BFC6

analogous

#C63778 #C63E37 #C68637

triadic

#C63E37 #37C63E #3E37C6

tetradic

#C63E37 #78C637 #37BFC6 #8637C6

square

#C63E37 #78C637 #37BFC6 #8637C6

split-complementary

#C63E37 #37C686 #3778C6

monochromatic

#66201C #962F2A #C63E37 #D46B66 #E29996

Accessibility & contrast

On white

5.07

#C63E37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#C63E37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63E37

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63E37	#FFFFFF	#000000	##FFFFFF
##C63E37	1.00	5.07	4.15	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655C35

Deuteranopia (green-blind)

#867932

Tritanopia (blue-blind)

#DA123E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63e37;
/* rgb */ color: rgb(198, 62, 55);
/* oklch */ color: oklch(56.0% 0.174 27.2);

Tailwind

colors: {
  custom: {
    50: '#df7b6e',
    500: '#c63e37',
    950: '#000000',
  },
}

SCSS

$custom: #c63e37;
$custom-light: #df7b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#c63e37",
  "rgb": {
    "r": 198,
    "g": 62,
    "b": 55
  },
  "hsl": {
    "h": 2.937,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.56035,
    "c": 0.17374,
    "h": 27.2
  },
  "luminance": 0.15727
}

Semantic roles & 50–950 ramp

primary

#C63E37

secondary

#8CCACD

accent

#D8E048

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63E37

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

Preview Lab → · Contrast checker → · Palette generator →