#B5372C#B5372C

#B5372C is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.164 H 28.9°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#B5372C
RGB	rgb(181, 55, 44)
HSL	hsl(5, 61%, 44%)
HSV	hsv(5, 76%, 71%)
CMYK	cmyk(0%, 69.6%, 75.7%, 29%)
CIE-LAB	lab(42.37, 50.09, 35.61)
CIE-LCH	lch(42.37, 61.46, 35.41°)
OKLab	oklab(52.24% 0.1438 0.0794)
OKLCH	oklch(52.24% 0.164 28.9)
XYZ	xyz(20.8792, 12.7411, 3.7423)
Luminance	0.1274 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5372C #2CAAB5

analogous

#B52C65 #B5372C #B57C2C

triadic

#B5372C #2CB537 #372CB5

tetradic

#B5372C #65B52C #2CAAB5 #7C2CB5

square

#B5372C #65B52C #2CAAB5 #7C2CB5

split-complementary

#B5372C #2CB57C #2C65B5

monochromatic

#531914 #842820 #B5372C #D3564B #DF847C

Accessibility & contrast

On white

5.92

#B5372C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B5372C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5372C

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5372C	#FFFFFF	#000000	##FFFFFF
##B5372C	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B532A

Deuteranopia (green-blind)

#7B6E27

Tritanopia (blue-blind)

#C70A36

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b5372c;
/* rgb */ color: rgb(181, 55, 44);
/* oklch */ color: oklch(52.2% 0.164 28.9);

Tailwind

colors: {
  custom: {
    50: '#d37666',
    500: '#b5372c',
    950: '#000000',
  },
}

SCSS

$custom: #b5372c;
$custom-light: #d37666;
$custom-dark: #000000;

JSON

{
  "hex": "#b5372c",
  "rgb": {
    "r": 181,
    "g": 55,
    "b": 44
  },
  "hsl": {
    "h": 4.818,
    "s": 60.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.52241,
    "c": 0.16424,
    "h": 28.9
  },
  "luminance": 0.12738
}

Semantic roles & 50–950 ramp

primary

#B5372C

secondary

#75C1C8

accent

#D7E444

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B5372C

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

Preview Lab → · Contrast checker → · Palette generator →