#C63638#C63638

#C63638 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.2% C 0.181 H 24.7°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#C63638
RGB	rgb(198, 54, 56)
HSL	hsl(359, 57%, 49%)
HSV	hsv(359, 73%, 78%)
CMYK	cmyk(0%, 72.7%, 71.7%, 22.4%)
CIE-LAB	lab(45.54, 56.47, 33.13)
CIE-LCH	lch(45.54, 65.47, 30.40°)
OKLab	oklab(55.24% 0.1644 0.0756)
OKLCH	oklch(55.24% 0.181 24.7)
XYZ	xyz(25.3245, 14.9335, 5.2896)
Luminance	0.1493 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63638 #36C6C4

analogous

#C63680 #C63638 #C67C36

triadic

#C63638 #38C636 #3638C6

tetradic

#C63638 #80C636 #36C6C4 #7C36C6

square

#C63638 #80C636 #36C6C4 #7C36C6

split-complementary

#C63638 #36C67C #3680C6

monochromatic

#661C1D #96292A #C63638 #D56466 #E29496

Accessibility & contrast

On white

5.27

#C63638 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#C63638 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63638

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63638	#FFFFFF	#000000	##FFFFFF
##C63638	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605837

Deuteranopia (green-blind)

#847733

Tritanopia (blue-blind)

#DA0038

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c63638;
/* rgb */ color: rgb(198, 54, 56);
/* oklch */ color: oklch(55.2% 0.181 24.7);

Tailwind

colors: {
  custom: {
    50: '#e0786f',
    500: '#c63638',
    950: '#000000',
  },
}

SCSS

$custom: #c63638;
$custom-light: #e0786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c63638",
  "rgb": {
    "r": 198,
    "g": 54,
    "b": 56
  },
  "hsl": {
    "h": 359.167,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55235,
    "c": 0.18091,
    "h": 24.7
  },
  "luminance": 0.1493
}

Semantic roles & 50–950 ramp

primary

#C63638

secondary

#8BCDCC

accent

#E0DE47

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C63638

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

Preview Lab → · Contrast checker → · Palette generator →