#C63C37#C63C37

#C63C37 is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.8% C 0.176 H 26.6°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#C63C37
RGB	rgb(198, 60, 55)
HSL	hsl(2, 57%, 50%)
HSV	hsv(2, 72%, 78%)
CMYK	cmyk(0%, 69.7%, 72.2%, 22.4%)
CIE-LAB	lab(46.33, 54.21, 34.63)
CIE-LCH	lch(46.33, 64.32, 32.57°)
OKLab	oklab(55.82% 0.157 0.0787)
OKLCH	oklch(55.82% 0.176 26.6)
XYZ	xyz(25.5970, 15.5171, 5.2610)
Luminance	0.1551 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63C37 #37C1C6

analogous

#C6377A #C63C37 #C68437

triadic

#C63C37 #37C63C #3C37C6

tetradic

#C63C37 #7AC637 #37C1C6 #8437C6

square

#C63C37 #7AC637 #37C1C6 #8437C6

split-complementary

#C63C37 #37C684 #377AC6

monochromatic

#661F1C #962D2A #C63C37 #D46A66 #E29896

Accessibility & contrast

On white

5.12

#C63C37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#C63C37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63C37

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63C37	#FFFFFF	#000000	##FFFFFF
##C63C37	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B35

Deuteranopia (green-blind)

#867932

Tritanopia (blue-blind)

#DA0B3C

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63c37;
/* rgb */ color: rgb(198, 60, 55);
/* oklch */ color: oklch(55.8% 0.176 26.6);

Tailwind

colors: {
  custom: {
    50: '#e07a6e',
    500: '#c63c37',
    950: '#000000',
  },
}

SCSS

$custom: #c63c37;
$custom-light: #e07a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#c63c37",
  "rgb": {
    "r": 198,
    "g": 60,
    "b": 55
  },
  "hsl": {
    "h": 2.098,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55822,
    "c": 0.17561,
    "h": 26.6
  },
  "luminance": 0.15513
}

Semantic roles & 50–950 ramp

primary

#C63C37

secondary

#8CCBCD

accent

#DAE048

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63C37

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

Preview Lab → · Contrast checker → · Palette generator →