#C63F33#C63F33

#C63F33 is a mid, vivid red. Relative luminance 0.158; OKLCH L 56.1% C 0.173 H 28.9°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#C63F33
RGB	rgb(198, 63, 51)
HSL	hsl(5, 59%, 49%)
HSV	hsv(5, 74%, 78%)
CMYK	cmyk(0%, 68.2%, 74.2%, 22.4%)
CIE-LAB	lab(46.72, 52.86, 37.33)
CIE-LCH	lch(46.72, 64.71, 35.23°)
OKLab	oklab(56.09% 0.1519 0.0837)
OKLCH	oklch(56.09% 0.173 28.9)
XYZ	xyz(25.6666, 15.8036, 4.8302)
Luminance	0.1580 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63F33 #33BAC6

analogous

#C63371 #C63F33 #C68933

triadic

#C63F33 #33C63F #3F33C6

tetradic

#C63F33 #71C633 #33BAC6 #8933C6

square

#C63F33 #71C633 #33BAC6 #8933C6

split-complementary

#C63F33 #33C689 #3371C6

monochromatic

#65201A #953026 #C63F33 #D66A60 #E39791

Accessibility & contrast

On white

5.05

#C63F33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#C63F33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63F33

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63F33	#FFFFFF	#000000	##FFFFFF
##C63F33	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665C31

Deuteranopia (green-blind)

#877A2E

Tritanopia (blue-blind)

#DA143D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c63f33;
/* rgb */ color: rgb(198, 63, 51);
/* oklch */ color: oklch(56.1% 0.173 28.9);

Tailwind

colors: {
  custom: {
    50: '#e07c6b',
    500: '#c63f33',
    950: '#000000',
  },
}

SCSS

$custom: #c63f33;
$custom-light: #e07c6b;
$custom-dark: #000000;

JSON

{
  "hex": "#c63f33",
  "rgb": {
    "r": 198,
    "g": 63,
    "b": 51
  },
  "hsl": {
    "h": 4.898,
    "s": 59.036,
    "l": 48.824
  },
  "oklch": {
    "l": 0.56091,
    "c": 0.17346,
    "h": 28.9
  },
  "luminance": 0.158
}

Semantic roles & 50–950 ramp

primary

#C63F33

secondary

#87C8CD

accent

#D5E246

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63F33

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

Preview Lab → · Contrast checker → · Palette generator →