#B3372A#B3372A

#B3372A is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.162 H 29.6°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#B3372A
RGB	rgb(179, 55, 42)
HSL	hsl(6, 62%, 43%)
HSV	hsv(6, 77%, 70%)
CMYK	cmyk(0%, 69.3%, 76.5%, 29.8%)
CIE-LAB	lab(41.98, 49.34, 36.21)
CIE-LCH	lch(41.98, 61.20, 36.27°)
OKLab	oklab(51.87% 0.1412 0.0803)
OKLCH	oklch(51.87% 0.162 29.6)
XYZ	xyz(20.3768, 12.4863, 3.5272)
Luminance	0.1248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3372A #2AA6B3

analogous

#B32A62 #B3372A #B37B2A

triadic

#B3372A #2AB337 #372AB3

tetradic

#B3372A #62B32A #2AA6B3 #7B2AB3

square

#B3372A #62B32A #2AA6B3 #7B2AB3

split-complementary

#B3372A #2AB37B #2A62B3

monochromatic

#501913 #81281E #B3372A #D45446 #DF8278

Accessibility & contrast

On white

6.01

#B3372A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B3372A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3372A

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3372A	#FFFFFF	#000000	##FFFFFF
##B3372A	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5228

Deuteranopia (green-blind)

#7A6D25

Tritanopia (blue-blind)

#C50C35

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b3372a;
/* rgb */ color: rgb(179, 55, 42);
/* oklch */ color: oklch(51.9% 0.162 29.6);

Tailwind

colors: {
  custom: {
    50: '#d27564',
    500: '#b3372a',
    950: '#000000',
  },
}

SCSS

$custom: #b3372a;
$custom-light: #d27564;
$custom-dark: #000000;

JSON

{
  "hex": "#b3372a",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 42
  },
  "hsl": {
    "h": 5.693,
    "s": 61.991,
    "l": 43.333
  },
  "oklch": {
    "l": 0.51872,
    "c": 0.16247,
    "h": 29.6
  },
  "luminance": 0.12483
}

Semantic roles & 50–950 ramp

primary

#B3372A

secondary

#72BFC7

accent

#D6E543

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B3372A

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

Preview Lab → · Contrast checker → · Palette generator →