#B34137#B34137

#B34137 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.2% C 0.150 H 28.2°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#B34137
RGB	rgb(179, 65, 55)
HSL	hsl(5, 53%, 46%)
HSV	hsv(5, 69%, 70%)
CMYK	cmyk(0%, 63.7%, 69.3%, 29.8%)
CIE-LAB	lab(43.72, 45.70, 30.71)
CIE-LCH	lch(43.72, 55.06, 33.91°)
OKLab	oklab(53.23% 0.1325 0.0711)
OKLCH	oklch(53.23% 0.15 28.2)
XYZ	xyz(21.1725, 13.6431, 5.1322)
Luminance	0.1364 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B34137 #37A9B3

analogous

#B3376B #B34137 #B37F37

triadic

#B34137 #37B341 #4137B3

tetradic

#B34137 #6BB337 #37A9B3 #7F37B3

square

#B34137 #6BB337 #37A9B3 #7F37B3

split-complementary

#B34137 #37B37F #376BB3

monochromatic

#551F1A #843029 #B34137 #CD645B #DB908A

Accessibility & contrast

On white

5.63

#B34137 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B34137 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B34137

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B34137	#FFFFFF	#000000	##FFFFFF
##B34137	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605835

Deuteranopia (green-blind)

#7C7134

Tritanopia (blue-blind)

#C4263F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b34137;
/* rgb */ color: rgb(179, 65, 55);
/* oklch */ color: oklch(53.2% 0.150 28.2);

Tailwind

colors: {
  custom: {
    50: '#d17b6e',
    500: '#b34137',
    950: '#000000',
  },
}

SCSS

$custom: #b34137;
$custom-light: #d17b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b34137",
  "rgb": {
    "r": 179,
    "g": 65,
    "b": 55
  },
  "hsl": {
    "h": 4.839,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.53229,
    "c": 0.15034,
    "h": 28.2
  },
  "luminance": 0.1364
}

Semantic roles & 50–950 ramp

primary

#B34137

secondary

#81C0C5

accent

#D1DC4B

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B34137

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

Preview Lab → · Contrast checker → · Palette generator →