#C13737#C13737

#C13737 is a mid, vivid red. Relative luminance 0.143; OKLCH L 54.5% C 0.175 H 25.1°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#C13737
RGB	rgb(193, 55, 55)
HSL	hsl(0, 56%, 49%)
HSV	hsv(0, 72%, 76%)
CMYK	cmyk(0%, 71.5%, 71.5%, 24.3%)
CIE-LAB	lab(44.73, 54.49, 32.53)
CIE-LCH	lch(44.73, 63.46, 30.84°)
OKLab	oklab(54.46% 0.1585 0.0744)
OKLCH	oklch(54.46% 0.175 25.1)
XYZ	xyz(24.0508, 14.3493, 5.1170)
Luminance	0.1435 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C13737 #37C1C1

analogous

#C1377C #C13737 #C17C37

triadic

#C13737 #37C137 #3737C1

tetradic

#C13737 #7CC137 #37C1C1 #7C37C1

square

#C13737 #7CC137 #37C1C1 #7C37C1

split-complementary

#C13737 #37C17C #377CC1

monochromatic

#621C1C #912929 #C13737 #D26363 #E09292

Accessibility & contrast

On white

5.43

#C13737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#C13737 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C13737

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C13737	#FFFFFF	#000000	##FFFFFF
##C13737	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5736

Deuteranopia (green-blind)

#817532

Tritanopia (blue-blind)

#D40039

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c13737;
/* rgb */ color: rgb(193, 55, 55);
/* oklch */ color: oklch(54.5% 0.175 25.1);

Tailwind

colors: {
  custom: {
    50: '#dc776e',
    500: '#c13737',
    950: '#000000',
  },
}

SCSS

$custom: #c13737;
$custom-light: #dc776e;
$custom-dark: #000000;

JSON

{
  "hex": "#c13737",
  "rgb": {
    "r": 193,
    "g": 55,
    "b": 55
  },
  "hsl": {
    "h": 0,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.54455,
    "c": 0.17507,
    "h": 25.1
  },
  "luminance": 0.14346
}

Semantic roles & 50–950 ramp

primary

#C13737

secondary

#89CBCB

accent

#DFDF49

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170907

muted

#857B7A

Preview Lab

Preview with #C13737

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

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