#C63A2F#C63A2F

#C63A2F is a mid, vivid red. Relative luminance 0.152; OKLCH L 55.5% C 0.179 H 28.7°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#C63A2F
RGB	rgb(198, 58, 47)
HSL	hsl(4, 62%, 48%)
HSV	hsv(4, 76%, 78%)
CMYK	cmyk(0%, 70.7%, 76.3%, 22.4%)
CIE-LAB	lab(45.96, 54.63, 38.74)
CIE-LCH	lch(45.96, 66.97, 35.34°)
OKLab	oklab(55.51% 0.1567 0.0858)
OKLCH	oklch(55.51% 0.179 28.7)
XYZ	xyz(25.3178, 15.2410, 4.2975)
Luminance	0.1524 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63A2F #2FBBC6

analogous

#C62F6F #C63A2F #C6852F

triadic

#C63A2F #2FC63A #3A2FC6

tetradic

#C63A2F #6FC62F #2FBBC6 #852FC6

square

#C63A2F #6FC62F #2FBBC6 #852FC6

split-complementary

#C63A2F #2FC685 #2F6FC6

monochromatic

#631D18 #952C23 #C63A2F #D8635A #E4928C

Accessibility & contrast

On white

5.19

#C63A2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#C63A2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63A2F

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63A2F	#FFFFFF	#000000	##FFFFFF
##C63A2F	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63592C

Deuteranopia (green-blind)

#86782A

Tritanopia (blue-blind)

#DA0039

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c63a2f;
/* rgb */ color: rgb(198, 58, 47);
/* oklch */ color: oklch(55.5% 0.179 28.7);

Tailwind

colors: {
  custom: {
    50: '#e07968',
    500: '#c63a2f',
    950: '#000000',
  },
}

SCSS

$custom: #c63a2f;
$custom-light: #e07968;
$custom-dark: #000000;

JSON

{
  "hex": "#c63a2f",
  "rgb": {
    "r": 198,
    "g": 58,
    "b": 47
  },
  "hsl": {
    "h": 4.371,
    "s": 61.633,
    "l": 48.039
  },
  "oklch": {
    "l": 0.55513,
    "c": 0.17861,
    "h": 28.7
  },
  "luminance": 0.15237
}

Semantic roles & 50–950 ramp

primary

#C63A2F

secondary

#83C8CE

accent

#D9E543

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C63A2F

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

Preview Lab → · Contrast checker → · Palette generator →