#C63B36#C63B36

#C63B36 is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.7% C 0.177 H 26.7°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#C63B36
RGB	rgb(198, 59, 54)
HSL	hsl(2, 57%, 49%)
HSV	hsv(2, 73%, 78%)
CMYK	cmyk(0%, 70.2%, 72.7%, 22.4%)
CIE-LAB	lab(46.18, 54.54, 35.03)
CIE-LCH	lch(46.18, 64.82, 32.71°)
OKLab	oklab(55.7% 0.1578 0.0794)
OKLCH	oklch(55.7% 0.177 26.7)
XYZ	xyz(25.5214, 15.4039, 5.1187)
Luminance	0.1540 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63B36 #36C1C6

analogous

#C63679 #C63B36 #C68336

triadic

#C63B36 #36C63B #3B36C6

tetradic

#C63B36 #79C636 #36C1C6 #8336C6

square

#C63B36 #79C636 #36C1C6 #8336C6

split-complementary

#C63B36 #36C683 #3679C6

monochromatic

#661E1C #962D29 #C63B36 #D56864 #E29794

Accessibility & contrast

On white

5.15

#C63B36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#C63B36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63B36

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63B36	#FFFFFF	#000000	##FFFFFF
##C63B36	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635A34

Deuteranopia (green-blind)

#867831

Tritanopia (blue-blind)

#DA063B

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c63b36;
/* rgb */ color: rgb(198, 59, 54);
/* oklch */ color: oklch(55.7% 0.177 26.7);

Tailwind

colors: {
  custom: {
    50: '#e07a6d',
    500: '#c63b36',
    950: '#000000',
  },
}

SCSS

$custom: #c63b36;
$custom-light: #e07a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#c63b36",
  "rgb": {
    "r": 198,
    "g": 59,
    "b": 54
  },
  "hsl": {
    "h": 2.083,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55704,
    "c": 0.17667,
    "h": 26.7
  },
  "luminance": 0.154
}

Semantic roles & 50–950 ramp

primary

#C63B36

secondary

#8BCBCD

accent

#DBE047

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63B36

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

Preview Lab → · Contrast checker → · Palette generator →