#B4372C#B4372C

#B4372C is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.163 H 28.9°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B4372C
RGB	rgb(180, 55, 44)
HSL	hsl(5, 61%, 44%)
HSV	hsv(5, 76%, 71%)
CMYK	cmyk(0%, 69.4%, 75.6%, 29.4%)
CIE-LAB	lab(42.19, 49.76, 35.36)
CIE-LCH	lch(42.19, 61.04, 35.40°)
OKLab	oklab(52.07% 0.1429 0.0789)
OKLCH	oklch(52.07% 0.163 28.9)
XYZ	xyz(20.6455, 12.6206, 3.7313)
Luminance	0.1262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4372C #2CA9B4

analogous

#B42C65 #B4372C #B47B2C

triadic

#B4372C #2CB437 #372CB4

tetradic

#B4372C #65B42C #2CA9B4 #7B2CB4

square

#B4372C #65B42C #2CA9B4 #7B2CB4

split-complementary

#B4372C #2CB47B #2C65B4

monochromatic

#521914 #832820 #B4372C #D3554A #DF847C

Accessibility & contrast

On white

5.96

#B4372C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B4372C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4372C

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4372C	#FFFFFF	#000000	##FFFFFF
##B4372C	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B522A

Deuteranopia (green-blind)

#7A6E27

Tritanopia (blue-blind)

#C60B35

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b4372c;
/* rgb */ color: rgb(180, 55, 44);
/* oklch */ color: oklch(52.1% 0.163 28.9);

Tailwind

colors: {
  custom: {
    50: '#d37666',
    500: '#b4372c',
    950: '#000000',
  },
}

SCSS

$custom: #b4372c;
$custom-light: #d37666;
$custom-dark: #000000;

JSON

{
  "hex": "#b4372c",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 44
  },
  "hsl": {
    "h": 4.853,
    "s": 60.714,
    "l": 43.922
  },
  "oklch": {
    "l": 0.52068,
    "c": 0.16319,
    "h": 28.9
  },
  "luminance": 0.12618
}

Semantic roles & 50–950 ramp

primary

#B4372C

secondary

#75C0C7

accent

#D7E444

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B4372C

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

Preview Lab → · Contrast checker → · Palette generator →