#C63838#C63838

#C63838 is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.4% C 0.179 H 25.2°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#C63838
RGB	rgb(198, 56, 56)
HSL	hsl(0, 56%, 50%)
HSV	hsv(0, 72%, 78%)
CMYK	cmyk(0%, 71.7%, 71.7%, 22.4%)
CIE-LAB	lab(45.80, 55.75, 33.43)
CIE-LCH	lch(45.80, 65.01, 30.95°)
OKLab	oklab(55.43% 0.1621 0.0763)
OKLCH	oklch(55.43% 0.179 25.2)
XYZ	xyz(25.4195, 15.1235, 5.3213)
Luminance	0.1512 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63838 #38C6C6

analogous

#C6387F #C63838 #C67F38

triadic

#C63838 #38C638 #3838C6

tetradic

#C63838 #7FC638 #38C6C6 #7F38C6

square

#C63838 #7FC638 #38C6C6 #7F38C6

split-complementary

#C63838 #38C67F #387FC6

monochromatic

#671D1D #962B2B #C63838 #D46767 #E29797

Accessibility & contrast

On white

5.22

#C63838 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#C63838 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63838

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63838	#FFFFFF	#000000	##FFFFFF
##C63838	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615936

Deuteranopia (green-blind)

#847833

Tritanopia (blue-blind)

#DA003A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c63838;
/* rgb */ color: rgb(198, 56, 56);
/* oklch */ color: oklch(55.4% 0.179 25.2);

Tailwind

colors: {
  custom: {
    50: '#e0786f',
    500: '#c63838',
    950: '#000000',
  },
}

SCSS

$custom: #c63838;
$custom-light: #e0786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c63838",
  "rgb": {
    "r": 198,
    "g": 56,
    "b": 56
  },
  "hsl": {
    "h": 0,
    "s": 55.906,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55429,
    "c": 0.17913,
    "h": 25.2
  },
  "luminance": 0.1512
}

Semantic roles & 50–950 ramp

primary

#C63838

secondary

#8DCDCD

accent

#DFDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63838

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

Preview Lab → · Contrast checker → · Palette generator →