#C63F36#C63F36

#C63F36 is a mid, vivid red. Relative luminance 0.158; OKLCH L 56.1% C 0.173 H 27.8°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#C63F36
RGB	rgb(198, 63, 54)
HSL	hsl(4, 57%, 49%)
HSV	hsv(4, 73%, 78%)
CMYK	cmyk(0%, 68.2%, 72.7%, 22.4%)
CIE-LAB	lab(46.75, 52.99, 35.68)
CIE-LCH	lch(46.75, 63.88, 33.95°)
OKLab	oklab(56.13% 0.1529 0.0808)
OKLCH	oklch(56.13% 0.173 27.8)
XYZ	xyz(25.7349, 15.8309, 5.1899)
Luminance	0.1583 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63F36 #36BDC6

analogous

#C63675 #C63F36 #C68736

triadic

#C63F36 #36C63F #3F36C6

tetradic

#C63F36 #75C636 #36BDC6 #8736C6

square

#C63F36 #75C636 #36BDC6 #8736C6

split-complementary

#C63F36 #36C687 #3675C6

monochromatic

#66201C #963029 #C63F36 #D56B64 #E29994

Accessibility & contrast

On white

5.04

#C63F36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#C63F36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63F36

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63F36	#FFFFFF	#000000	##FFFFFF
##C63F36	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655C34

Deuteranopia (green-blind)

#877A31

Tritanopia (blue-blind)

#DA153E

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c63f36;
/* rgb */ color: rgb(198, 63, 54);
/* oklch */ color: oklch(56.1% 0.173 27.8);

Tailwind

colors: {
  custom: {
    50: '#df7c6d',
    500: '#c63f36',
    950: '#000000',
  },
}

SCSS

$custom: #c63f36;
$custom-light: #df7c6d;
$custom-dark: #000000;

JSON

{
  "hex": "#c63f36",
  "rgb": {
    "r": 198,
    "g": 63,
    "b": 54
  },
  "hsl": {
    "h": 3.75,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.5613,
    "c": 0.17296,
    "h": 27.8
  },
  "luminance": 0.15827
}

Semantic roles & 50–950 ramp

primary

#C63F36

secondary

#8BC9CD

accent

#D7E047

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63F36

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

Preview Lab → · Contrast checker → · Palette generator →