#B44037#B44037

#B44037 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.3% C 0.152 H 27.8°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#B44037
RGB	rgb(180, 64, 55)
HSL	hsl(4, 53%, 46%)
HSV	hsv(4, 69%, 71%)
CMYK	cmyk(0%, 64.4%, 69.4%, 29.4%)
CIE-LAB	lab(43.73, 46.49, 30.77)
CIE-LCH	lch(43.73, 55.75, 33.49°)
OKLab	oklab(53.27% 0.1349 0.0711)
OKLCH	oklch(53.27% 0.152 27.8)
XYZ	xyz(21.3476, 13.6489, 5.1241)
Luminance	0.1365 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B44037 #37ABB4

analogous

#B4376C #B44037 #B47E37

triadic

#B44037 #37B440 #4037B4

tetradic

#B44037 #6CB437 #37ABB4 #7E37B4

square

#B44037 #6CB437 #37ABB4 #7E37B4

split-complementary

#B44037 #37B47E #376CB4

monochromatic

#561F1A #852F29 #B44037 #CD635B #DB908A

Accessibility & contrast

On white

5.63

#B44037 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B44037 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B44037

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B44037	#FFFFFF	#000000	##FFFFFF
##B44037	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)

#5F5735

Deuteranopia (green-blind)

#7C7134

Tritanopia (blue-blind)

#C6243F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b44037;
/* rgb */ color: rgb(180, 64, 55);
/* oklch */ color: oklch(53.3% 0.152 27.8);

Tailwind

colors: {
  custom: {
    50: '#d27a6e',
    500: '#b44037',
    950: '#000000',
  },
}

SCSS

$custom: #b44037;
$custom-light: #d27a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b44037",
  "rgb": {
    "r": 180,
    "g": 64,
    "b": 55
  },
  "hsl": {
    "h": 4.32,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.53268,
    "c": 0.15248,
    "h": 27.8
  },
  "luminance": 0.13646
}

Semantic roles & 50–950 ramp

primary

#B44037

secondary

#81C1C6

accent

#D2DD4B

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B44037

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

Preview Lab → · Contrast checker → · Palette generator →