#C63828#C63828

#C63828 is a mid, vivid red. Relative luminance 0.150; OKLCH L 55.2% C 0.181 H 30.2°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#C63828
RGB	rgb(198, 56, 40)
HSL	hsl(6, 66%, 47%)
HSV	hsv(6, 80%, 78%)
CMYK	cmyk(0%, 71.7%, 79.8%, 22.4%)
CIE-LAB	lab(45.62, 55.13, 42.18)
CIE-LCH	lch(45.62, 69.41, 37.42°)
OKLab	oklab(55.24% 0.1568 0.0912)
OKLCH	oklch(55.24% 0.181 30.2)
XYZ	xyz(25.0888, 14.9912, 3.5796)
Luminance	0.1499 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63828 #28B6C6

analogous

#C62867 #C63828 #C68728

triadic

#C63828 #28C638 #3828C6

tetradic

#C63828 #67C628 #28B6C6 #8728C6

square

#C63828 #67C628 #28B6C6 #8728C6

split-complementary

#C63828 #28C687 #2867C6

monochromatic

#601B13 #932A1E #C63828 #DC5E50 #E68D83

Accessibility & contrast

On white

5.25

#C63828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#C63828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63828

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63828	#FFFFFF	#000000	##FFFFFF
##C63828	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625825

Deuteranopia (green-blind)

#867721

Tritanopia (blue-blind)

#DA0036

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c63828;
/* rgb */ color: rgb(198, 56, 40);
/* oklch */ color: oklch(55.2% 0.181 30.2);

Tailwind

colors: {
  custom: {
    50: '#e17864',
    500: '#c63828',
    950: '#000000',
  },
}

SCSS

$custom: #c63828;
$custom-light: #e17864;
$custom-dark: #000000;

JSON

{
  "hex": "#c63828",
  "rgb": {
    "r": 198,
    "g": 56,
    "b": 40
  },
  "hsl": {
    "h": 6.076,
    "s": 66.387,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55236,
    "c": 0.18143,
    "h": 30.2
  },
  "luminance": 0.14987
}

Semantic roles & 50–950 ramp

primary

#C63828

secondary

#7BC6CF

accent

#D8E93E

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A05

muted

#857C7A

Preview Lab

Preview with #C63828

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

Preview Lab → · Contrast checker → · Palette generator →