#C63C3F#C63C3F

#C63C3F is a mid, vivid red. Relative luminance 0.156; OKLCH L 55.9% C 0.175 H 23.7°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#C63C3F
RGB	rgb(198, 60, 63)
HSL	hsl(359, 55%, 51%)
HSV	hsv(359, 70%, 78%)
CMYK	cmyk(0%, 69.7%, 68.2%, 22.4%)
CIE-LAB	lab(46.45, 54.60, 30.09)
CIE-LCH	lch(46.45, 62.34, 28.86°)
OKLab	oklab(55.94% 0.1599 0.0701)
OKLCH	oklch(55.94% 0.175 23.7)
XYZ	xyz(25.8045, 15.6001, 6.3540)
Luminance	0.1560 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63C3F #3CC6C3

analogous

#C63C84 #C63C3F #C67E3C

triadic

#C63C3F #3FC63C #3C3FC6

tetradic

#C63C3F #84C63C #3CC6C3 #7E3CC6

square

#C63C3F #84C63C #3CC6C3 #7E3CC6

split-complementary

#C63C3F #3CC67E #3C84C6

monochromatic

#691F20 #982D2F #C63C3F #D46B6E #E29B9C

Accessibility & contrast

On white

5.10

#C63C3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#C63C3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63C3F

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63C3F	#FFFFFF	#000000	##FFFFFF
##C63C3F	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625B3E

Deuteranopia (green-blind)

#85793B

Tritanopia (blue-blind)

#D9103F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63c3f;
/* rgb */ color: rgb(198, 60, 63);
/* oklch */ color: oklch(55.9% 0.175 23.7);

Tailwind

colors: {
  custom: {
    50: '#df7b74',
    500: '#c63c3f',
    950: '#000000',
  },
}

SCSS

$custom: #c63c3f;
$custom-light: #df7b74;
$custom-dark: #000000;

JSON

{
  "hex": "#c63c3f",
  "rgb": {
    "r": 198,
    "g": 60,
    "b": 63
  },
  "hsl": {
    "h": 358.696,
    "s": 54.762,
    "l": 50.588
  },
  "oklch": {
    "l": 0.5594,
    "c": 0.17459,
    "h": 23.7
  },
  "luminance": 0.15596
}

Semantic roles & 50–950 ramp

primary

#C63C3F

secondary

#90CECC

accent

#DEDB4A

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63C3F

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

Preview Lab → · Contrast checker → · Palette generator →