#B0372B#B0372B

#B0372B is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.4% C 0.159 H 29.3°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B0372B
RGB	rgb(176, 55, 43)
HSL	hsl(5, 61%, 43%)
HSV	hsv(5, 76%, 69%)
CMYK	cmyk(0%, 68.8%, 75.6%, 31%)
CIE-LAB	lab(41.44, 48.37, 34.90)
CIE-LCH	lch(41.44, 59.64, 35.81°)
OKLab	oklab(51.37% 0.1388 0.0779)
OKLCH	oklch(51.37% 0.159 29.3)
XYZ	xyz(19.7089, 12.1398, 3.5905)
Luminance	0.1214 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0372B #2BA4B0

analogous

#B02B61 #B0372B #B07A2B

triadic

#B0372B #2BB037 #372BB0

tetradic

#B0372B #61B02B #2BA4B0 #7A2BB0

square

#B0372B #61B02B #2BA4B0 #7A2BB0

split-complementary

#B0372B #2BB07A #2B61B0

monochromatic

#4E1813 #7F281F #B0372B #D25346 #DE8178

Accessibility & contrast

On white

6.13

#B0372B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B0372B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0372B

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0372B	#FFFFFF	#000000	##FFFFFF
##B0372B	1.00	6.13	3.43	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5129

Deuteranopia (green-blind)

#786B27

Tritanopia (blue-blind)

#C21035

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b0372b;
/* rgb */ color: rgb(176, 55, 43);
/* oklch */ color: oklch(51.4% 0.159 29.3);

Tailwind

colors: {
  custom: {
    50: '#d07565',
    500: '#b0372b',
    950: '#000000',
  },
}

SCSS

$custom: #b0372b;
$custom-light: #d07565;
$custom-dark: #000000;

JSON

{
  "hex": "#b0372b",
  "rgb": {
    "r": 176,
    "g": 55,
    "b": 43
  },
  "hsl": {
    "h": 5.414,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.51368,
    "c": 0.15912,
    "h": 29.3
  },
  "luminance": 0.12137
}

Semantic roles & 50–950 ramp

primary

#B0372B

secondary

#71BEC6

accent

#D5E444

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B0372B

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

Preview Lab → · Contrast checker → · Palette generator →