#C63431#C63431

#C63431 is a mid, vivid red. Relative luminance 0.147; OKLCH L 55.0% C 0.183 H 26.6°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#C63431
RGB	rgb(198, 52, 49)
HSL	hsl(1, 60%, 48%)
HSV	hsv(1, 75%, 78%)
CMYK	cmyk(0%, 73.7%, 75.3%, 22.4%)
CIE-LAB	lab(45.20, 56.87, 36.79)
CIE-LCH	lch(45.20, 67.73, 32.90°)
OKLab	oklab(54.95% 0.1641 0.0821)
OKLCH	oklch(54.95% 0.184 26.6)
XYZ	xyz(25.0740, 14.6874, 4.4198)
Luminance	0.1468 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63431 #31C3C6

analogous

#C63178 #C63431 #C67E31

triadic

#C63431 #31C634 #3431C6

tetradic

#C63431 #78C631 #31C3C6 #7E31C6

square

#C63431 #78C631 #31C3C6 #7E31C6

split-complementary

#C63431 #31C67E #3178C6

monochromatic

#641A19 #952725 #C63431 #D7605D #E3908E

Accessibility & contrast

On white

5.33

#C63431 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#C63431 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63431

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63431	#FFFFFF	#000000	##FFFFFF
##C63431	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60572F

Deuteranopia (green-blind)

#84762B

Tritanopia (blue-blind)

#DA0035

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c63431;
/* rgb */ color: rgb(198, 52, 49);
/* oklch */ color: oklch(55.0% 0.183 26.6);

Tailwind

colors: {
  custom: {
    50: '#e0766a',
    500: '#c63431',
    950: '#000000',
  },
}

SCSS

$custom: #c63431;
$custom-light: #e0766a;
$custom-dark: #000000;

JSON

{
  "hex": "#c63431",
  "rgb": {
    "r": 198,
    "g": 52,
    "b": 49
  },
  "hsl": {
    "h": 1.208,
    "s": 60.324,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54953,
    "c": 0.1835,
    "h": 26.6
  },
  "luminance": 0.14684
}

Semantic roles & 50–950 ramp

primary

#C63431

secondary

#85CCCE

accent

#E0E344

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C63431

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

Preview Lab → · Contrast checker → · Palette generator →