#B33237#B33237

#B33237 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.165 H 23.2°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B33237
RGB	rgb(179, 50, 55)
HSL	hsl(358, 56%, 45%)
HSV	hsv(358, 72%, 70%)
CMYK	cmyk(0%, 72.1%, 69.3%, 29.8%)
CIE-LAB	lab(41.44, 51.87, 27.99)
CIE-LCH	lch(41.44, 58.94, 28.35°)
OKLab	oklab(51.53% 0.152 0.065)
OKLCH	oklch(51.53% 0.165 23.2)
XYZ	xyz(20.4228, 12.1438, 4.8823)
Luminance	0.1214 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33237 #32B3AE

analogous

#B33278 #B33237 #B36D32

triadic

#B33237 #37B332 #3237B3

tetradic

#B33237 #78B332 #32B3AE #6D32B3

square

#B33237 #78B332 #32B3AE #6D32B3

split-complementary

#B33237 #32B36D #3278B3

monochromatic

#53171A #832528 #B33237 #CF5358 #DC8386

Accessibility & contrast

On white

6.13

#B33237 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B33237 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33237

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33237	#FFFFFF	#000000	##FFFFFF
##B33237	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)

#575036

Deuteranopia (green-blind)

#776C33

Tritanopia (blue-blind)

#C50035

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b33237;
/* rgb */ color: rgb(179, 50, 55);
/* oklch */ color: oklch(51.5% 0.165 23.2);

Tailwind

colors: {
  custom: {
    50: '#d1736e',
    500: '#b33237',
    950: '#000000',
  },
}

SCSS

$custom: #b33237;
$custom-light: #d1736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b33237",
  "rgb": {
    "r": 179,
    "g": 50,
    "b": 55
  },
  "hsl": {
    "h": 357.674,
    "s": 56.332,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51526,
    "c": 0.16531,
    "h": 23.2
  },
  "luminance": 0.12141
}

Semantic roles & 50–950 ramp

primary

#B33237

secondary

#7BC6C3

accent

#E0DA48

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33237

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

Preview Lab → · Contrast checker → · Palette generator →