#C63D31#C63D31

#C63D31 is a mid, vivid red. Relative luminance 0.156; OKLCH L 55.9% C 0.176 H 28.9°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#C63D31
RGB	rgb(198, 61, 49)
HSL	hsl(5, 60%, 48%)
HSV	hsv(5, 75%, 78%)
CMYK	cmyk(0%, 69.2%, 75.3%, 22.4%)
CIE-LAB	lab(46.40, 53.56, 38.10)
CIE-LCH	lch(46.40, 65.73, 35.43°)
OKLab	oklab(55.85% 0.1537 0.0849)
OKLCH	oklch(55.85% 0.176 28.9)
XYZ	xyz(25.5147, 15.5688, 4.5667)
Luminance	0.1557 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63D31 #31BAC6

analogous

#C6316F #C63D31 #C68731

triadic

#C63D31 #31C63D #3D31C6

tetradic

#C63D31 #6FC631 #31BAC6 #8731C6

square

#C63D31 #6FC631 #31BAC6 #8731C6

split-complementary

#C63D31 #31C687 #316FC6

monochromatic

#641F19 #952E25 #C63D31 #D7675D #E3958E

Accessibility & contrast

On white

5.11

#C63D31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#C63D31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63D31

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63D31	#FFFFFF	#000000	##FFFFFF
##C63D31	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655B2F

Deuteranopia (green-blind)

#87792C

Tritanopia (blue-blind)

#DA0C3B

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63d31;
/* rgb */ color: rgb(198, 61, 49);
/* oklch */ color: oklch(55.9% 0.176 28.9);

Tailwind

colors: {
  custom: {
    50: '#e07b6a',
    500: '#c63d31',
    950: '#000000',
  },
}

SCSS

$custom: #c63d31;
$custom-light: #e07b6a;
$custom-dark: #000000;

JSON

{
  "hex": "#c63d31",
  "rgb": {
    "r": 198,
    "g": 61,
    "b": 49
  },
  "hsl": {
    "h": 4.832,
    "s": 60.324,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5585,
    "c": 0.17561,
    "h": 28.9
  },
  "luminance": 0.15565
}

Semantic roles & 50–950 ramp

primary

#C63D31

secondary

#85C8CE

accent

#D7E344

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C63D31

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

Preview Lab → · Contrast checker → · Palette generator →