#B34737#B34737

#B34737 is a mid, vivid red. Relative luminance 0.144; OKLCH L 54.0% C 0.144 H 30.8°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#B34737
RGB	rgb(179, 71, 55)
HSL	hsl(8, 53%, 46%)
HSV	hsv(8, 69%, 70%)
CMYK	cmyk(0%, 60.3%, 69.3%, 29.8%)
CIE-LAB	lab(44.76, 42.93, 31.95)
CIE-LCH	lch(44.76, 53.51, 36.65°)
OKLab	oklab(54.01% 0.1238 0.0738)
OKLCH	oklch(54.01% 0.144 30.8)
XYZ	xyz(21.5354, 14.3689, 5.2532)
Luminance	0.1437 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B34737 #37A3B3

analogous

#B33765 #B34737 #B38537

triadic

#B34737 #37B347 #4737B3

tetradic

#B34737 #65B337 #37A3B3 #8537B3

square

#B34737 #65B337 #37A3B3 #8537B3

split-complementary

#B34737 #37B385 #3765B3

monochromatic

#55221A #843429 #B34737 #CD695B #DB948A

Accessibility & contrast

On white

5.42

#B34737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#B34737 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B34737

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B34737	#FFFFFF	#000000	##FFFFFF
##B34737	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B35

Deuteranopia (green-blind)

#7F7334

Tritanopia (blue-blind)

#C42F44

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #b34737;
/* rgb */ color: rgb(179, 71, 55);
/* oklch */ color: oklch(54.0% 0.144 30.8);

Tailwind

colors: {
  custom: {
    50: '#d07e6e',
    500: '#b34737',
    950: '#000000',
  },
}

SCSS

$custom: #b34737;
$custom-light: #d07e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b34737",
  "rgb": {
    "r": 179,
    "g": 71,
    "b": 55
  },
  "hsl": {
    "h": 7.742,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.54013,
    "c": 0.14414,
    "h": 30.8
  },
  "luminance": 0.14366
}

Semantic roles & 50–950 ramp

primary

#B34737

secondary

#81BCC5

accent

#CADC4B

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B34737

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

Preview Lab → · Contrast checker → · Palette generator →