#C63D39#C63D39

#C63D39 is a mid, vivid red. Relative luminance 0.156; OKLCH L 56.0% C 0.174 H 26.2°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#C63D39
RGB	rgb(198, 61, 57)
HSL	hsl(2, 55%, 50%)
HSV	hsv(2, 71%, 78%)
CMYK	cmyk(0%, 69.2%, 71.2%, 22.4%)
CIE-LAB	lab(46.50, 53.91, 33.67)
CIE-LCH	lch(46.50, 63.56, 31.99°)
OKLab	oklab(55.96% 0.1565 0.077)
OKLCH	oklch(55.96% 0.174 26.2)
XYZ	xyz(25.6988, 15.6425, 5.5362)
Luminance	0.1564 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63D39 #39C2C6

analogous

#C6397C #C63D39 #C68339

triadic

#C63D39 #39C63D #3D39C6

tetradic

#C63D39 #7CC639 #39C2C6 #8339C6

square

#C63D39 #7CC639 #39C2C6 #8339C6

split-complementary

#C63D39 #39C683 #397CC6

monochromatic

#67201E #962E2B #C63D39 #D46C69 #E19A98

Accessibility & contrast

On white

5.09

#C63D39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#C63D39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63D39

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63D39	#FFFFFF	#000000	##FFFFFF
##C63D39	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B37

Deuteranopia (green-blind)

#867935

Tritanopia (blue-blind)

#DA103D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63d39;
/* rgb */ color: rgb(198, 61, 57);
/* oklch */ color: oklch(56.0% 0.174 26.2);

Tailwind

colors: {
  custom: {
    50: '#df7b70',
    500: '#c63d39',
    950: '#000000',
  },
}

SCSS

$custom: #c63d39;
$custom-light: #df7b70;
$custom-dark: #000000;

JSON

{
  "hex": "#c63d39",
  "rgb": {
    "r": 198,
    "g": 61,
    "b": 57
  },
  "hsl": {
    "h": 1.702,
    "s": 55.294,
    "l": 50
  },
  "oklch": {
    "l": 0.55955,
    "c": 0.17439,
    "h": 26.2
  },
  "luminance": 0.15639
}

Semantic roles & 50–950 ramp

primary

#C63D39

secondary

#8ECBCD

accent

#DADF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63D39

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

Preview Lab → · Contrast checker → · Palette generator →