#C63D3F#C63D3F

#C63D3F is a mid, vivid red. Relative luminance 0.157; OKLCH L 56.0% C 0.174 H 24.0°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#C63D3F
RGB	rgb(198, 61, 63)
HSL	hsl(359, 55%, 51%)
HSV	hsv(359, 69%, 78%)
CMYK	cmyk(0%, 69.2%, 68.2%, 22.4%)
CIE-LAB	lab(46.59, 54.21, 30.26)
CIE-LCH	lch(46.59, 62.09, 29.17°)
OKLab	oklab(56.05% 0.1587 0.0705)
OKLCH	oklch(56.05% 0.174 24)
XYZ	xyz(25.8574, 15.7059, 6.3717)
Luminance	0.1570 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63D3F #3DC6C4

analogous

#C63D83 #C63D3F #C67F3D

triadic

#C63D3F #3FC63D #3D3FC6

tetradic

#C63D3F #83C63D #3DC6C4 #7F3DC6

square

#C63D3F #83C63D #3DC6C4 #7F3DC6

split-complementary

#C63D3F #3DC67F #3D83C6

monochromatic

#6A1F20 #992D2E #C63D3F #D46C6E #E29C9D

Accessibility & contrast

On white

5.07

#C63D3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#C63D3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63D3F

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63D3F	#FFFFFF	#000000	##FFFFFF
##C63D3F	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635C3E

Deuteranopia (green-blind)

#85793B

Tritanopia (blue-blind)

#D9133F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63d3f;
/* rgb */ color: rgb(198, 61, 63);
/* oklch */ color: oklch(56.0% 0.174 24.0);

Tailwind

colors: {
  custom: {
    50: '#df7b74',
    500: '#c63d3f',
    950: '#000000',
  },
}

SCSS

$custom: #c63d3f;
$custom-light: #df7b74;
$custom-dark: #000000;

JSON

{
  "hex": "#c63d3f",
  "rgb": {
    "r": 198,
    "g": 61,
    "b": 63
  },
  "hsl": {
    "h": 359.124,
    "s": 54.582,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56045,
    "c": 0.17363,
    "h": 24
  },
  "luminance": 0.15702
}

Semantic roles & 50–950 ramp

primary

#C63D3F

secondary

#91CECD

accent

#DEDC4A

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63D3F

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

Preview Lab → · Contrast checker → · Palette generator →