#C63D3D#C63D3D

#C63D3D is a mid, vivid red. Relative luminance 0.157; OKLCH L 56.0% C 0.174 H 24.7°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#C63D3D
RGB	rgb(198, 61, 61)
HSL	hsl(0, 55%, 51%)
HSV	hsv(0, 69%, 78%)
CMYK	cmyk(0%, 69.2%, 69.2%, 22.4%)
CIE-LAB	lab(46.56, 54.11, 31.40)
CIE-LCH	lch(46.56, 62.56, 30.13°)
OKLab	oklab(56.01% 0.1579 0.0727)
OKLCH	oklch(56.01% 0.174 24.7)
XYZ	xyz(25.8025, 15.6840, 6.0826)
Luminance	0.1568 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63D3D #3DC6C6

analogous

#C63D81 #C63D3D #C6813D

triadic

#C63D3D #3DC63D #3D3DC6

tetradic

#C63D3D #81C63D #3DC6C6 #813DC6

square

#C63D3D #81C63D #3DC6C6 #813DC6

split-complementary

#C63D3D #3DC681 #3D81C6

monochromatic

#6A1F1F #992D2D #C63D3D #D46C6C #E29C9C

Accessibility & contrast

On white

5.08

#C63D3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#C63D3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63D3D

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63D3D	#FFFFFF	#000000	##FFFFFF
##C63D3D	1.00	5.08	4.14	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635C3C

Deuteranopia (green-blind)

#867939

Tritanopia (blue-blind)

#D9123F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63d3d;
/* rgb */ color: rgb(198, 61, 61);
/* oklch */ color: oklch(56.0% 0.174 24.7);

Tailwind

colors: {
  custom: {
    50: '#df7b72',
    500: '#c63d3d',
    950: '#000000',
  },
}

SCSS

$custom: #c63d3d;
$custom-light: #df7b72;
$custom-dark: #000000;

JSON

{
  "hex": "#c63d3d",
  "rgb": {
    "r": 198,
    "g": 61,
    "b": 61
  },
  "hsl": {
    "h": 0,
    "s": 54.582,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56014,
    "c": 0.17386,
    "h": 24.7
  },
  "luminance": 0.1568
}

Semantic roles & 50–950 ramp

primary

#C63D3D

secondary

#91CECE

accent

#DEDE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63D3D

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

Preview Lab → · Contrast checker → · Palette generator →