#B13437#B13437

#B13437 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.4% C 0.161 H 23.6°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#B13437
RGB	rgb(177, 52, 55)
HSL	hsl(359, 55%, 45%)
HSV	hsv(359, 71%, 69%)
CMYK	cmyk(0%, 70.6%, 68.9%, 30.6%)
CIE-LAB	lab(41.35, 50.47, 27.78)
CIE-LCH	lch(41.35, 57.61, 28.83°)
OKLab	oklab(51.39% 0.1478 0.0647)
OKLCH	oklch(51.39% 0.161 23.6)
XYZ	xyz(20.0512, 12.0819, 4.8899)
Luminance	0.1208 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13437 #34B1AE

analogous

#B13476 #B13437 #B17034

triadic

#B13437 #37B134 #3437B1

tetradic

#B13437 #76B134 #34B1AE #7034B1

square

#B13437 #76B134 #34B1AE #7034B1

split-complementary

#B13437 #34B170 #3476B1

monochromatic

#52181A #822628 #B13437 #CD5558 #DB8486

Accessibility & contrast

On white

6.15

#B13437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B13437 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13437

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13437	#FFFFFF	#000000	##FFFFFF
##B13437	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575036

Deuteranopia (green-blind)

#766B33

Tritanopia (blue-blind)

#C20A36

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b13437;
/* rgb */ color: rgb(177, 52, 55);
/* oklch */ color: oklch(51.4% 0.161 23.6);

Tailwind

colors: {
  custom: {
    50: '#d0746e',
    500: '#b13437',
    950: '#000000',
  },
}

SCSS

$custom: #b13437;
$custom-light: #d0746e;
$custom-dark: #000000;

JSON

{
  "hex": "#b13437",
  "rgb": {
    "r": 177,
    "g": 52,
    "b": 55
  },
  "hsl": {
    "h": 358.56,
    "s": 54.585,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51385,
    "c": 0.16131,
    "h": 23.6
  },
  "luminance": 0.12079
}

Semantic roles & 50–950 ramp

primary

#B13437

secondary

#7CC5C3

accent

#DEDA4A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13437

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

Preview Lab → · Contrast checker → · Palette generator →