#B13537#B13537

#B13537 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.5% C 0.160 H 23.9°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#B13537
RGB	rgb(177, 53, 55)
HSL	hsl(359, 54%, 45%)
HSV	hsv(359, 70%, 69%)
CMYK	cmyk(0%, 70.1%, 68.9%, 30.6%)
CIE-LAB	lab(41.49, 50.08, 27.95)
CIE-LCH	lch(41.49, 57.35, 29.17°)
OKLab	oklab(51.49% 0.1465 0.0651)
OKLCH	oklch(51.49% 0.16 23.9)
XYZ	xyz(20.0963, 12.1721, 4.9049)
Luminance	0.1217 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13537 #35B1AF

analogous

#B13575 #B13537 #B17135

triadic

#B13537 #37B135 #3537B1

tetradic

#B13537 #75B135 #35B1AF #7135B1

square

#B13537 #75B135 #35B1AF #7135B1

split-complementary

#B13537 #35B171 #3575B1

monochromatic

#53191A #822728 #B13537 #CD5759 #DB8687

Accessibility & contrast

On white

6.12

#B13537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B13537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13537

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13537	#FFFFFF	#000000	##FFFFFF
##B13537	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585136

Deuteranopia (green-blind)

#776C33

Tritanopia (blue-blind)

#C20E37

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13537;
/* rgb */ color: rgb(177, 53, 55);
/* oklch */ color: oklch(51.5% 0.160 23.9);

Tailwind

colors: {
  custom: {
    50: '#d0746e',
    500: '#b13537',
    950: '#000000',
  },
}

SCSS

$custom: #b13537;
$custom-light: #d0746e;
$custom-dark: #000000;

JSON

{
  "hex": "#b13537",
  "rgb": {
    "r": 177,
    "g": 53,
    "b": 55
  },
  "hsl": {
    "h": 359.032,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51491,
    "c": 0.16033,
    "h": 23.9
  },
  "luminance": 0.12169
}

Semantic roles & 50–950 ramp

primary

#B13537

secondary

#7DC4C3

accent

#DDDB4B

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13537

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

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