#C43637#C43637

#C43637 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.9% C 0.179 H 25.0°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#C43637
RGB	rgb(196, 54, 55)
HSL	hsl(360, 57%, 49%)
HSV	hsv(360, 72%, 77%)
CMYK	cmyk(0%, 72.4%, 71.9%, 23.1%)
CIE-LAB	lab(45.16, 55.80, 33.17)
CIE-LCH	lch(45.16, 64.91, 30.73°)
OKLab	oklab(54.87% 0.1623 0.0756)
OKLCH	oklch(54.87% 0.179 25)
XYZ	xyz(24.7765, 14.6537, 5.1375)
Luminance	0.1465 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43637 #36C4C3

analogous

#C4367E #C43637 #C47C36

triadic

#C43637 #37C436 #3637C4

tetradic

#C43637 #7EC436 #36C4C3 #7C36C4

square

#C43637 #7EC436 #36C4C3 #7C36C4

split-complementary

#C43637 #36C47C #367EC4

monochromatic

#641C1C #94292A #C43637 #D46364 #E19394

Accessibility & contrast

On white

5.34

#C43637 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#C43637 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43637

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43637	#FFFFFF	#000000	##FFFFFF
##C43637	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5736

Deuteranopia (green-blind)

#837632

Tritanopia (blue-blind)

#D80038

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c43637;
/* rgb */ color: rgb(196, 54, 55);
/* oklch */ color: oklch(54.9% 0.179 25.0);

Tailwind

colors: {
  custom: {
    50: '#de776e',
    500: '#c43637',
    950: '#000000',
  },
}

SCSS

$custom: #c43637;
$custom-light: #de776e;
$custom-dark: #000000;

JSON

{
  "hex": "#c43637",
  "rgb": {
    "r": 196,
    "g": 54,
    "b": 55
  },
  "hsl": {
    "h": 359.577,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.54875,
    "c": 0.17902,
    "h": 25
  },
  "luminance": 0.1465
}

Semantic roles & 50–950 ramp

primary

#C43637

secondary

#89CCCC

accent

#E0DF48

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170907

muted

#857B7A

Preview Lab

Preview with #C43637

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

Preview Lab → · Contrast checker → · Palette generator →