#B04037#B04037

#B04037 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.6% C 0.148 H 27.8°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B04037
RGB	rgb(176, 64, 55)
HSL	hsl(4, 52%, 45%)
HSV	hsv(4, 69%, 69%)
CMYK	cmyk(0%, 63.6%, 68.8%, 31%)
CIE-LAB	lab(43.03, 45.08, 29.77)
CIE-LCH	lch(43.03, 54.02, 33.43°)
OKLab	oklab(52.61% 0.1309 0.0691)
OKLCH	oklch(52.61% 0.148 27.8)
XYZ	xyz(20.4296, 13.1756, 5.0811)
Luminance	0.1317 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B04037 #37A7B0

analogous

#B0376A #B04037 #B07D37

triadic

#B04037 #37B040 #4037B0

tetradic

#B04037 #6AB037 #37A7B0 #7D37B0

square

#B04037 #6AB037 #37A7B0 #7D37B0

split-complementary

#B04037 #37B07D #376AB0

monochromatic

#531E1A #812F28 #B04037 #CB6259 #DA8E88

Accessibility & contrast

On white

5.78

#B04037 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B04037 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B04037

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B04037	#FFFFFF	#000000	##FFFFFF
##B04037	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5635

Deuteranopia (green-blind)

#7A6F34

Tritanopia (blue-blind)

#C1263F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b04037;
/* rgb */ color: rgb(176, 64, 55);
/* oklch */ color: oklch(52.6% 0.148 27.8);

Tailwind

colors: {
  custom: {
    50: '#cf7a6e',
    500: '#b04037',
    950: '#000000',
  },
}

SCSS

$custom: #b04037;
$custom-light: #cf7a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b04037",
  "rgb": {
    "r": 176,
    "g": 64,
    "b": 55
  },
  "hsl": {
    "h": 4.463,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52611,
    "c": 0.14804,
    "h": 27.8
  },
  "luminance": 0.13173
}

Semantic roles & 50–950 ramp

primary

#B04037

secondary

#7FBFC4

accent

#D1DC4C

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B04037

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

Preview Lab → · Contrast checker → · Palette generator →