#C13B31#C13B31

#C13B31 is a mid, vivid red. Relative luminance 0.147; OKLCH L 54.8% C 0.172 H 28.4°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#C13B31
RGB	rgb(193, 59, 49)
HSL	hsl(4, 60%, 47%)
HSV	hsv(4, 75%, 76%)
CMYK	cmyk(0%, 69.4%, 74.6%, 24.3%)
CIE-LAB	lab(45.21, 52.70, 36.53)
CIE-LCH	lch(45.21, 64.12, 34.73°)
OKLab	oklab(54.79% 0.1516 0.0818)
OKLCH	oklch(54.79% 0.172 28.4)
XYZ	xyz(24.1134, 14.6907, 4.4710)
Luminance	0.1469 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C13B31 #31B7C1

analogous

#C1316F #C13B31 #C18331

triadic

#C13B31 #31C13B #3B31C1

tetradic

#C13B31 #6FC131 #31B7C1 #8331C1

square

#C13B31 #6FC131 #31B7C1 #8331C1

split-complementary

#C13B31 #31C183 #316FC1

monochromatic

#5F1D18 #902C25 #C13B31 #D5635A #E2918B

Accessibility & contrast

On white

5.33

#C13B31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#C13B31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C13B31

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C13B31	#FFFFFF	#000000	##FFFFFF
##C13B31	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#62582F

Deuteranopia (green-blind)

#83762C

Tritanopia (blue-blind)

#D40B3A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c13b31;
/* rgb */ color: rgb(193, 59, 49);
/* oklch */ color: oklch(54.8% 0.172 28.4);

Tailwind

colors: {
  custom: {
    50: '#dc796a',
    500: '#c13b31',
    950: '#000000',
  },
}

SCSS

$custom: #c13b31;
$custom-light: #dc796a;
$custom-dark: #000000;

JSON

{
  "hex": "#c13b31",
  "rgb": {
    "r": 193,
    "g": 59,
    "b": 49
  },
  "hsl": {
    "h": 4.167,
    "s": 59.504,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54788,
    "c": 0.17227,
    "h": 28.4
  },
  "luminance": 0.14687
}

Semantic roles & 50–950 ramp

primary

#C13B31

secondary

#82C6CC

accent

#D8E345

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C13B31

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

Preview Lab → · Contrast checker → · Palette generator →