#C63B39#C63B39

#C63B39 is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.7% C 0.176 H 25.6°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#C63B39
RGB	rgb(198, 59, 57)
HSL	hsl(1, 55%, 50%)
HSV	hsv(1, 71%, 78%)
CMYK	cmyk(0%, 70.2%, 71.2%, 22.4%)
CIE-LAB	lab(46.22, 54.68, 33.34)
CIE-LCH	lch(46.22, 64.04, 31.37°)
OKLab	oklab(55.75% 0.1589 0.0763)
OKLCH	oklch(55.75% 0.176 25.6)
XYZ	xyz(25.5940, 15.4329, 5.5013)
Luminance	0.1543 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63B39 #39C4C6

analogous

#C6397E #C63B39 #C68139

triadic

#C63B39 #39C63B #3B39C6

tetradic

#C63B39 #7EC639 #39C4C6 #8139C6

square

#C63B39 #7EC639 #39C4C6 #8139C6

split-complementary

#C63B39 #39C681 #397EC6

monochromatic

#671F1E #962D2B #C63B39 #D46A69 #E19998

Accessibility & contrast

On white

5.14

#C63B39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#C63B39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63B39

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63B39	#FFFFFF	#000000	##FFFFFF
##C63B39	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635A37

Deuteranopia (green-blind)

#857934

Tritanopia (blue-blind)

#DA083C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c63b39;
/* rgb */ color: rgb(198, 59, 57);
/* oklch */ color: oklch(55.7% 0.176 25.6);

Tailwind

colors: {
  custom: {
    50: '#df7a6f',
    500: '#c63b39',
    950: '#000000',
  },
}

SCSS

$custom: #c63b39;
$custom-light: #df7a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#c63b39",
  "rgb": {
    "r": 198,
    "g": 59,
    "b": 57
  },
  "hsl": {
    "h": 0.851,
    "s": 55.294,
    "l": 50
  },
  "oklch": {
    "l": 0.55746,
    "c": 0.17626,
    "h": 25.6
  },
  "luminance": 0.15429
}

Semantic roles & 50–950 ramp

primary

#C63B39

secondary

#8ECCCD

accent

#DCDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63B39

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

Preview Lab → · Contrast checker → · Palette generator →