#C63F31#C63F31

#C63F31 is a mid, vivid red. Relative luminance 0.158; OKLCH L 56.1% C 0.174 H 29.5°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#C63F31
RGB	rgb(198, 63, 49)
HSL	hsl(6, 60%, 48%)
HSV	hsv(6, 75%, 78%)
CMYK	cmyk(0%, 68.2%, 75.3%, 22.4%)
CIE-LAB	lab(46.69, 52.77, 38.42)
CIE-LCH	lch(46.69, 65.28, 36.06°)
OKLab	oklab(56.07% 0.1513 0.0856)
OKLCH	oklch(56.07% 0.174 29.5)
XYZ	xyz(25.6235, 15.7863, 4.6030)
Luminance	0.1578 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63F31 #31B8C6

analogous

#C6316D #C63F31 #C68A31

triadic

#C63F31 #31C63F #3F31C6

tetradic

#C63F31 #6DC631 #31B8C6 #8A31C6

square

#C63F31 #6DC631 #31B8C6 #8A31C6

split-complementary

#C63F31 #31C68A #316DC6

monochromatic

#642019 #952F25 #C63F31 #D7695D #E3968E

Accessibility & contrast

On white

5.05

#C63F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#C63F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63F31

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63F31	#FFFFFF	#000000	##FFFFFF
##C63F31	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665C2E

Deuteranopia (green-blind)

#877A2C

Tritanopia (blue-blind)

#DA133D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c63f31;
/* rgb */ color: rgb(198, 63, 49);
/* oklch */ color: oklch(56.1% 0.174 29.5);

Tailwind

colors: {
  custom: {
    50: '#e07c6a',
    500: '#c63f31',
    950: '#000000',
  },
}

SCSS

$custom: #c63f31;
$custom-light: #e07c6a;
$custom-dark: #000000;

JSON

{
  "hex": "#c63f31",
  "rgb": {
    "r": 198,
    "g": 63,
    "b": 49
  },
  "hsl": {
    "h": 5.638,
    "s": 60.324,
    "l": 48.431
  },
  "oklch": {
    "l": 0.56067,
    "c": 0.17379,
    "h": 29.5
  },
  "luminance": 0.15783
}

Semantic roles & 50–950 ramp

primary

#C63F31

secondary

#85C7CE

accent

#D5E344

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C63F31

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

Preview Lab → · Contrast checker → · Palette generator →