#C63C33#C63C33

#C63C33 is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.8% C 0.176 H 28.0°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#C63C33
RGB	rgb(198, 60, 51)
HSL	hsl(4, 59%, 49%)
HSV	hsv(4, 74%, 78%)
CMYK	cmyk(0%, 69.7%, 74.2%, 22.4%)
CIE-LAB	lab(46.29, 54.03, 36.85)
CIE-LCH	lch(46.29, 65.40, 34.30°)
OKLab	oklab(55.77% 0.1556 0.0827)
OKLCH	oklch(55.77% 0.176 28)
XYZ	xyz(25.5050, 15.4803, 4.7764)
Luminance	0.1548 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63C33 #33BDC6

analogous

#C63374 #C63C33 #C68633

triadic

#C63C33 #33C63C #3C33C6

tetradic

#C63C33 #74C633 #33BDC6 #8633C6

square

#C63C33 #74C633 #33BDC6 #8633C6

split-complementary

#C63C33 #33C686 #3374C6

monochromatic

#651F1A #952D26 #C63C33 #D66760 #E39691

Accessibility & contrast

On white

5.13

#C63C33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#C63C33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63C33

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63C33	#FFFFFF	#000000	##FFFFFF
##C63C33	1.00	5.13	4.10	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B31

Deuteranopia (green-blind)

#86792E

Tritanopia (blue-blind)

#DA093B

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c63c33;
/* rgb */ color: rgb(198, 60, 51);
/* oklch */ color: oklch(55.8% 0.176 28.0);

Tailwind

colors: {
  custom: {
    50: '#e07a6b',
    500: '#c63c33',
    950: '#000000',
  },
}

SCSS

$custom: #c63c33;
$custom-light: #e07a6b;
$custom-dark: #000000;

JSON

{
  "hex": "#c63c33",
  "rgb": {
    "r": 198,
    "g": 60,
    "b": 51
  },
  "hsl": {
    "h": 3.673,
    "s": 59.036,
    "l": 48.824
  },
  "oklch": {
    "l": 0.55769,
    "c": 0.17621,
    "h": 28
  },
  "luminance": 0.15477
}

Semantic roles & 50–950 ramp

primary

#C63C33

secondary

#87C9CD

accent

#D9E246

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63C33

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

Preview Lab → · Contrast checker → · Palette generator →