#C43937#C43937

#C43937 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.2% C 0.176 H 25.8°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#C43937
RGB	rgb(196, 57, 55)
HSL	hsl(1, 56%, 49%)
HSV	hsv(1, 72%, 77%)
CMYK	cmyk(0%, 70.9%, 71.9%, 23.1%)
CIE-LAB	lab(45.55, 54.70, 33.63)
CIE-LCH	lch(45.55, 64.21, 31.59°)
OKLab	oklab(55.17% 0.1588 0.0766)
OKLCH	oklch(55.17% 0.176 25.8)
XYZ	xyz(24.9204, 14.9416, 5.1855)
Luminance	0.1494 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43937 #37C2C4

analogous

#C4377C #C43937 #C48037

triadic

#C43937 #37C439 #3937C4

tetradic

#C43937 #7CC437 #37C2C4 #8037C4

square

#C43937 #7CC437 #37C2C4 #8037C4

split-complementary

#C43937 #37C480 #377CC4

monochromatic

#641D1C #942B2A #C43937 #D46665 #E19594

Accessibility & contrast

On white

5.27

#C43937 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#C43937 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43937

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43937	#FFFFFF	#000000	##FFFFFF
##C43937	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)

#615935

Deuteranopia (green-blind)

#847732

Tritanopia (blue-blind)

#D7013A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43937;
/* rgb */ color: rgb(196, 57, 55);
/* oklch */ color: oklch(55.2% 0.176 25.8);

Tailwind

colors: {
  custom: {
    50: '#de796e',
    500: '#c43937',
    950: '#000000',
  },
}

SCSS

$custom: #c43937;
$custom-light: #de796e;
$custom-dark: #000000;

JSON

{
  "hex": "#c43937",
  "rgb": {
    "r": 196,
    "g": 57,
    "b": 55
  },
  "hsl": {
    "h": 0.851,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55171,
    "c": 0.17631,
    "h": 25.8
  },
  "luminance": 0.14938
}

Semantic roles & 50–950 ramp

primary

#C43937

secondary

#8BCBCC

accent

#DDDF48

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43937

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

Preview Lab → · Contrast checker → · Palette generator →