#B04137#B04137

#B04137 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.7% C 0.147 H 28.2°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#B04137
RGB	rgb(176, 65, 55)
HSL	hsl(5, 52%, 45%)
HSV	hsv(5, 69%, 69%)
CMYK	cmyk(0%, 63.1%, 68.8%, 31%)
CIE-LAB	lab(43.20, 44.63, 29.97)
CIE-LCH	lch(43.20, 53.76, 33.88°)
OKLab	oklab(52.74% 0.1295 0.0696)
OKLCH	oklch(52.74% 0.147 28.2)
XYZ	xyz(20.4865, 13.2894, 5.1000)
Luminance	0.1329 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B04137 #37A6B0

analogous

#B03769 #B04137 #B07E37

triadic

#B04137 #37B041 #4137B0

tetradic

#B04137 #69B037 #37A6B0 #7E37B0

square

#B04137 #69B037 #37A6B0 #7E37B0

split-complementary

#B04137 #37B07E #3769B0

monochromatic

#531F1A #813028 #B04137 #CB6259 #DA8E88

Accessibility & contrast

On white

5.74

#B04137 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B04137 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B04137

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B04137	#FFFFFF	#000000	##FFFFFF
##B04137	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5735

Deuteranopia (green-blind)

#7A6F34

Tritanopia (blue-blind)

#C1283F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b04137;
/* rgb */ color: rgb(176, 65, 55);
/* oklch */ color: oklch(52.7% 0.147 28.2);

Tailwind

colors: {
  custom: {
    50: '#ce7b6e',
    500: '#b04137',
    950: '#000000',
  },
}

SCSS

$custom: #b04137;
$custom-light: #ce7b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b04137",
  "rgb": {
    "r": 176,
    "g": 65,
    "b": 55
  },
  "hsl": {
    "h": 4.959,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52738,
    "c": 0.14699,
    "h": 28.2
  },
  "luminance": 0.13287
}

Semantic roles & 50–950 ramp

primary

#B04137

secondary

#7FBEC4

accent

#D0DC4C

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B04137

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

Preview Lab → · Contrast checker → · Palette generator →