#C63A3D#C63A3D

#C63A3D is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.7% C 0.177 H 23.9°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#C63A3D
RGB	rgb(198, 58, 61)
HSL	hsl(359, 55%, 50%)
HSV	hsv(359, 71%, 78%)
CMYK	cmyk(0%, 70.7%, 69.2%, 22.4%)
CIE-LAB	lab(46.14, 55.25, 30.90)
CIE-LCH	lch(46.14, 63.31, 29.22°)
OKLab	oklab(55.7% 0.1616 0.0716)
OKLCH	oklch(55.7% 0.177 23.9)
XYZ	xyz(25.6469, 15.3726, 6.0307)
Luminance	0.1537 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63A3D #3AC6C3

analogous

#C63A83 #C63A3D #C67D3A

triadic

#C63A3D #3DC63A #3A3DC6

tetradic

#C63A3D #83C63A #3AC6C3 #7D3AC6

square

#C63A3D #83C63A #3AC6C3 #7D3AC6

split-complementary

#C63A3D #3AC67D #3A83C6

monochromatic

#681E20 #972C2E #C63A3D #D4696C #E1999A

Accessibility & contrast

On white

5.15

#C63A3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#C63A3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63A3D

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63A3D	#FFFFFF	#000000	##FFFFFF
##C63A3D	1.00	5.15	4.07	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A3C

Deuteranopia (green-blind)

#857839

Tritanopia (blue-blind)

#D9073D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c63a3d;
/* rgb */ color: rgb(198, 58, 61);
/* oklch */ color: oklch(55.7% 0.177 23.9);

Tailwind

colors: {
  custom: {
    50: '#df7972',
    500: '#c63a3d',
    950: '#000000',
  },
}

SCSS

$custom: #c63a3d;
$custom-light: #df7972;
$custom-dark: #000000;

JSON

{
  "hex": "#c63a3d",
  "rgb": {
    "r": 198,
    "g": 58,
    "b": 61
  },
  "hsl": {
    "h": 358.714,
    "s": 55.118,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55703,
    "c": 0.17671,
    "h": 23.9
  },
  "luminance": 0.15369
}

Semantic roles & 50–950 ramp

primary

#C63A3D

secondary

#8FCDCC

accent

#DEDB49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63A3D

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

Preview Lab → · Contrast checker → · Palette generator →