#C63B5B#C63B5B

#C63B5B is a mid, vivid red. Relative luminance 0.159; OKLCH L 56.4% C 0.175 H 11.3°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#C63B5B
RGB	rgb(198, 59, 91)
HSL	hsl(346, 55%, 50%)
HSV	hsv(346, 70%, 78%)
CMYK	cmyk(0%, 70.2%, 54%, 22.4%)
CIE-LAB	lab(46.83, 56.81, 13.64)
CIE-LCH	lch(46.83, 58.42, 13.51°)
OKLab	oklab(56.4% 0.1719 0.0345)
OKLCH	oklch(56.4% 0.175 11.3)
XYZ	xyz(26.7434, 15.8927, 11.5548)
Luminance	0.1589 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63B5B #3BC6A6

analogous

#C63BA0 #C63B5B #C6603B

triadic

#C63B5B #5BC63B #3B5BC6

tetradic

#C63B5B #A0C63B #3BC6A6 #603BC6

square

#C63B5B #A0C63B #3BC6A6 #603BC6

split-complementary

#C63B5B #3BC660 #3BA0C6

monochromatic

#681E2F #982C45 #C63B5B #D46A83 #E29AAA

Accessibility & contrast

On white

5.03

#C63B5B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#C63B5B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63B5B

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63B5B	#FFFFFF	#000000	##FFFFFF
##C63B5B	1.00	5.03	4.18	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5D5B

Deuteranopia (green-blind)

#817958

Tritanopia (blue-blind)

#D81C48

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c63b5b;
/* rgb */ color: rgb(198, 59, 91);
/* oklch */ color: oklch(56.4% 0.175 11.3);

Tailwind

colors: {
  custom: {
    50: '#de7b89',
    500: '#c63b5b',
    950: '#000000',
  },
}

SCSS

$custom: #c63b5b;
$custom-light: #de7b89;
$custom-dark: #000000;

JSON

{
  "hex": "#c63b5b",
  "rgb": {
    "r": 198,
    "g": 59,
    "b": 91
  },
  "hsl": {
    "h": 346.187,
    "s": 54.941,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56399,
    "c": 0.17536,
    "h": 11.3
  },
  "luminance": 0.15889
}

Semantic roles & 50–950 ramp

primary

#C63B5B

secondary

#8FCDBF

accent

#DEBC4A

background

#FEF7F8

surface

#FDEEEF

border

#D5C9CA

text

#160A0B

muted

#847C7C

Preview Lab

Preview with #C63B5B

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

Preview Lab → · Contrast checker → · Palette generator →