#C63742#C63742

#C63742 is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.5% C 0.179 H 21.2°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#C63742
RGB	rgb(198, 55, 66)
HSL	hsl(355, 57%, 50%)
HSV	hsv(355, 72%, 78%)
CMYK	cmyk(0%, 72.2%, 66.7%, 22.4%)
CIE-LAB	lab(45.82, 56.61, 27.53)
CIE-LCH	lch(45.82, 62.95, 25.93°)
OKLab	oklab(55.49% 0.1669 0.0648)
OKLCH	oklch(55.49% 0.179 21.2)
XYZ	xyz(25.6410, 15.1353, 6.7245)
Luminance	0.1513 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63742 #37C6BB

analogous

#C63789 #C63742 #C67437

triadic

#C63742 #42C637 #3742C6

tetradic

#C63742 #89C637 #37C6BB #7437C6

square

#C63742 #89C637 #37C6BB #7437C6

split-complementary

#C63742 #37C674 #3789C6

monochromatic

#661C22 #962A32 #C63742 #D4666E #E2969C

Accessibility & contrast

On white

5.22

#C63742 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#C63742 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63742

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63742	#FFFFFF	#000000	##FFFFFF
##C63742	1.00	5.22	4.03	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5941

Deuteranopia (green-blind)

#83783E

Tritanopia (blue-blind)

#D9003C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c63742;
/* rgb */ color: rgb(198, 55, 66);
/* oklch */ color: oklch(55.5% 0.179 21.2);

Tailwind

colors: {
  custom: {
    50: '#df7876',
    500: '#c63742',
    950: '#000000',
  },
}

SCSS

$custom: #c63742;
$custom-light: #df7876;
$custom-dark: #000000;

JSON

{
  "hex": "#c63742",
  "rgb": {
    "r": 198,
    "g": 55,
    "b": 66
  },
  "hsl": {
    "h": 355.385,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55488,
    "c": 0.17907,
    "h": 21.2
  },
  "luminance": 0.15131
}

Semantic roles & 50–950 ramp

primary

#C63742

secondary

#8CCDC8

accent

#E0D448

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63742

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

Preview Lab → · Contrast checker → · Palette generator →