#C63B3C#C63B3C

#C63B3C is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.8% C 0.176 H 24.5°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#C63B3C
RGB	rgb(198, 59, 60)
HSL	hsl(360, 55%, 50%)
HSV	hsv(360, 70%, 78%)
CMYK	cmyk(0%, 70.2%, 69.7%, 22.4%)
CIE-LAB	lab(46.26, 54.83, 31.64)
CIE-LCH	lch(46.26, 63.30, 29.99°)
OKLab	oklab(55.79% 0.16 0.0731)
OKLCH	oklch(55.79% 0.176 24.5)
XYZ	xyz(25.6711, 15.4637, 5.9072)
Luminance	0.1546 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63B3C #3BC6C5

analogous

#C63B82 #C63B3C #C67F3B

triadic

#C63B3C #3CC63B #3B3CC6

tetradic

#C63B3C #82C63B #3BC6C5 #7F3BC6

square

#C63B3C #82C63B #3BC6C5 #7F3BC6

split-complementary

#C63B3C #3BC67F #3B82C6

monochromatic

#681E1F #982C2D #C63B3C #D46A6B #E29A9A

Accessibility & contrast

On white

5.13

#C63B3C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#C63B3C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63B3C

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63B3C	#FFFFFF	#000000	##FFFFFF
##C63B3C	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625B3B

Deuteranopia (green-blind)

#857938

Tritanopia (blue-blind)

#DA0A3D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63b3c;
/* rgb */ color: rgb(198, 59, 60);
/* oklch */ color: oklch(55.8% 0.176 24.5);

Tailwind

colors: {
  custom: {
    50: '#df7a72',
    500: '#c63b3c',
    950: '#000000',
  },
}

SCSS

$custom: #c63b3c;
$custom-light: #df7a72;
$custom-dark: #000000;

JSON

{
  "hex": "#c63b3c",
  "rgb": {
    "r": 198,
    "g": 59,
    "b": 60
  },
  "hsl": {
    "h": 359.568,
    "s": 54.941,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5579,
    "c": 0.17588,
    "h": 24.5
  },
  "luminance": 0.1546
}

Semantic roles & 50–950 ramp

primary

#C63B3C

secondary

#8FCDCD

accent

#DEDD4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63B3C

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

Preview Lab → · Contrast checker → · Palette generator →