#C63839#C63839

#C63839 is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.4% C 0.179 H 24.9°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#C63839
RGB	rgb(198, 56, 57)
HSL	hsl(360, 56%, 50%)
HSV	hsv(360, 72%, 78%)
CMYK	cmyk(0%, 71.7%, 71.2%, 22.4%)
CIE-LAB	lab(45.82, 55.80, 32.87)
CIE-LCH	lch(45.82, 64.76, 30.50°)
OKLab	oklab(55.44% 0.1624 0.0752)
OKLCH	oklch(55.44% 0.179 24.9)
XYZ	xyz(25.4442, 15.1333, 5.4514)
Luminance	0.1513 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63839 #38C6C5

analogous

#C63880 #C63839 #C67E38

triadic

#C63839 #39C638 #3839C6

tetradic

#C63839 #80C638 #38C6C5 #7E38C6

square

#C63839 #80C638 #38C6C5 #7E38C6

split-complementary

#C63839 #38C67E #3880C6

monochromatic

#671D1E #962B2B #C63839 #D46768 #E29797

Accessibility & contrast

On white

5.22

#C63839 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#C63839 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63839

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63839	#FFFFFF	#000000	##FFFFFF
##C63839	1.00	5.22	4.03	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615938

Deuteranopia (green-blind)

#847834

Tritanopia (blue-blind)

#DA003A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c63839;
/* rgb */ color: rgb(198, 56, 57);
/* oklch */ color: oklch(55.4% 0.179 24.9);

Tailwind

colors: {
  custom: {
    50: '#e0786f',
    500: '#c63839',
    950: '#000000',
  },
}

SCSS

$custom: #c63839;
$custom-light: #e0786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c63839",
  "rgb": {
    "r": 198,
    "g": 56,
    "b": 57
  },
  "hsl": {
    "h": 359.577,
    "s": 55.906,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55443,
    "c": 0.17901,
    "h": 24.9
  },
  "luminance": 0.1513
}

Semantic roles & 50–950 ramp

primary

#C63839

secondary

#8DCDCD

accent

#DFDE49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63839

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

Preview Lab → · Contrast checker → · Palette generator →