#C63C31#C63C31

#C63C31 is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.7% C 0.177 H 28.6°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#C63C31
RGB	rgb(198, 60, 49)
HSL	hsl(4, 60%, 48%)
HSV	hsv(4, 75%, 78%)
CMYK	cmyk(0%, 69.7%, 75.3%, 22.4%)
CIE-LAB	lab(46.26, 53.95, 37.95)
CIE-LCH	lch(46.26, 65.96, 35.12°)
OKLab	oklab(55.74% 0.1549 0.0846)
OKLCH	oklch(55.74% 0.177 28.6)
XYZ	xyz(25.4618, 15.4631, 4.5491)
Luminance	0.1546 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63C31 #31BBC6

analogous

#C63170 #C63C31 #C68731

triadic

#C63C31 #31C63C #3C31C6

tetradic

#C63C31 #70C631 #31BBC6 #8731C6

square

#C63C31 #70C631 #31BBC6 #8731C6

split-complementary

#C63C31 #31C687 #3170C6

monochromatic

#641E19 #952D25 #C63C31 #D7665D #E3958E

Accessibility & contrast

On white

5.13

#C63C31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#C63C31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63C31

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63C31	#FFFFFF	#000000	##FFFFFF
##C63C31	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645A2F

Deuteranopia (green-blind)

#86792C

Tritanopia (blue-blind)

#DA083B

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63c31;
/* rgb */ color: rgb(198, 60, 49);
/* oklch */ color: oklch(55.7% 0.177 28.6);

Tailwind

colors: {
  custom: {
    50: '#e07a6a',
    500: '#c63c31',
    950: '#000000',
  },
}

SCSS

$custom: #c63c31;
$custom-light: #e07a6a;
$custom-dark: #000000;

JSON

{
  "hex": "#c63c31",
  "rgb": {
    "r": 198,
    "g": 60,
    "b": 49
  },
  "hsl": {
    "h": 4.43,
    "s": 60.324,
    "l": 48.431
  },
  "oklch": {
    "l": 0.55744,
    "c": 0.17652,
    "h": 28.6
  },
  "luminance": 0.15459
}

Semantic roles & 50–950 ramp

primary

#C63C31

secondary

#85C8CE

accent

#D8E344

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C63C31

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

Preview Lab → · Contrast checker → · Palette generator →