#C63F3D#C63F3D

#C63F3D is a mid, vivid red. Relative luminance 0.159; OKLCH L 56.2% C 0.172 H 25.3°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#C63F3D
RGB	rgb(198, 63, 61)
HSL	hsl(1, 55%, 51%)
HSV	hsv(1, 69%, 78%)
CMYK	cmyk(0%, 68.2%, 69.2%, 22.4%)
CIE-LAB	lab(46.84, 53.32, 31.75)
CIE-LCH	lch(46.84, 62.06, 30.77°)
OKLab	oklab(56.23% 0.1554 0.0735)
OKLCH	oklch(56.23% 0.172 25.3)
XYZ	xyz(25.9113, 15.9015, 6.1189)
Luminance	0.1590 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63F3D #3DC4C6

analogous

#C63D7F #C63F3D #C6833D

triadic

#C63F3D #3DC63F #3F3DC6

tetradic

#C63F3D #7FC63D #3DC4C6 #833DC6

square

#C63F3D #7FC63D #3DC4C6 #833DC6

split-complementary

#C63F3D #3DC683 #3D7FC6

monochromatic

#6A201F #992E2D #C63F3D #D46E6C #E29D9C

Accessibility & contrast

On white

5.02

#C63F3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#C63F3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63F3D

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63F3D	#FFFFFF	#000000	##FFFFFF
##C63F3D	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645D3C

Deuteranopia (green-blind)

#867A39

Tritanopia (blue-blind)

#D91840

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c63f3d;
/* rgb */ color: rgb(198, 63, 61);
/* oklch */ color: oklch(56.2% 0.172 25.3);

Tailwind

colors: {
  custom: {
    50: '#df7c72',
    500: '#c63f3d',
    950: '#000000',
  },
}

SCSS

$custom: #c63f3d;
$custom-light: #df7c72;
$custom-dark: #000000;

JSON

{
  "hex": "#c63f3d",
  "rgb": {
    "r": 198,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 0.876,
    "s": 54.582,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56229,
    "c": 0.17193,
    "h": 25.3
  },
  "luminance": 0.15898
}

Semantic roles & 50–950 ramp

primary

#C63F3D

secondary

#91CDCE

accent

#DCDE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63F3D

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

Preview Lab → · Contrast checker → · Palette generator →