#B13937#B13937

#B13937 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.156 H 25.2°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#B13937
RGB	rgb(177, 57, 55)
HSL	hsl(1, 53%, 45%)
HSV	hsv(1, 69%, 69%)
CMYK	cmyk(0%, 67.8%, 68.9%, 30.6%)
CIE-LAB	lab(42.08, 48.46, 28.67)
CIE-LCH	lch(42.08, 56.31, 30.61°)
OKLab	oklab(51.93% 0.1414 0.0666)
OKLCH	oklch(51.93% 0.156 25.2)
XYZ	xyz(20.2863, 12.5521, 4.9683)
Luminance	0.1255 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13937 #37AFB1

analogous

#B13772 #B13937 #B17637

triadic

#B13937 #37B139 #3937B1

tetradic

#B13937 #72B137 #37AFB1 #7637B1

square

#B13937 #72B137 #37AFB1 #7637B1

split-complementary

#B13937 #37B176 #3772B1

monochromatic

#541B1A #822A28 #B13937 #CC5B5A #DA8A88

Accessibility & contrast

On white

5.98

#B13937 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B13937 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13937

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13937	#FFFFFF	#000000	##FFFFFF
##B13937	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5336

Deuteranopia (green-blind)

#786D33

Tritanopia (blue-blind)

#C2183A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b13937;
/* rgb */ color: rgb(177, 57, 55);
/* oklch */ color: oklch(51.9% 0.156 25.2);

Tailwind

colors: {
  custom: {
    50: '#d0766e',
    500: '#b13937',
    950: '#000000',
  },
}

SCSS

$custom: #b13937;
$custom-light: #d0766e;
$custom-dark: #000000;

JSON

{
  "hex": "#b13937",
  "rgb": {
    "r": 177,
    "g": 57,
    "b": 55
  },
  "hsl": {
    "h": 0.984,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51934,
    "c": 0.15634,
    "h": 25.2
  },
  "luminance": 0.12549
}

Semantic roles & 50–950 ramp

primary

#B13937

secondary

#80C3C4

accent

#DADC4C

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13937

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

Preview Lab → · Contrast checker → · Palette generator →