#B33238#B33238

#B33238 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.165 H 22.8°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#B33238
RGB	rgb(179, 50, 56)
HSL	hsl(357, 56%, 45%)
HSV	hsv(357, 72%, 70%)
CMYK	cmyk(0%, 72.1%, 68.7%, 29.8%)
CIE-LAB	lab(41.46, 51.93, 27.40)
CIE-LCH	lch(41.46, 58.71, 27.82°)
OKLab	oklab(51.54% 0.1524 0.0639)
OKLCH	oklch(51.54% 0.165 22.8)
XYZ	xyz(20.4470, 12.1535, 5.0098)
Luminance	0.1215 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33238 #32B3AD

analogous

#B33279 #B33238 #B36C32

triadic

#B33238 #38B332 #3238B3

tetradic

#B33238 #79B332 #32B3AD #6C32B3

square

#B33238 #79B332 #32B3AD #6C32B3

split-complementary

#B33238 #32B36C #3279B3

monochromatic

#53171A #832529 #B33238 #CF5359 #DC8387

Accessibility & contrast

On white

6.12

#B33238 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B33238 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33238

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33238	#FFFFFF	#000000	##FFFFFF
##B33238	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565037

Deuteranopia (green-blind)

#776C34

Tritanopia (blue-blind)

#C50135

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b33238;
/* rgb */ color: rgb(179, 50, 56);
/* oklch */ color: oklch(51.5% 0.165 22.8);

Tailwind

colors: {
  custom: {
    50: '#d1736e',
    500: '#b33238',
    950: '#000000',
  },
}

SCSS

$custom: #b33238;
$custom-light: #d1736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b33238",
  "rgb": {
    "r": 179,
    "g": 50,
    "b": 56
  },
  "hsl": {
    "h": 357.209,
    "s": 56.332,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51543,
    "c": 0.16522,
    "h": 22.8
  },
  "luminance": 0.1215
}

Semantic roles & 50–950 ramp

primary

#B33238

secondary

#7BC6C2

accent

#E0D948

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33238

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

Preview Lab → · Contrast checker → · Palette generator →