#B22533#B22533

#B22533 is a mid, vivid red. Relative luminance 0.110; OKLCH L 50.1% C 0.176 H 21.6°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#B22533
RGB	rgb(178, 37, 51)
HSL	hsl(354, 66%, 42%)
HSV	hsv(354, 79%, 70%)
CMYK	cmyk(0%, 79.2%, 71.3%, 30.2%)
CIE-LAB	lab(39.63, 55.72, 28.19)
CIE-LCH	lch(39.63, 62.44, 26.84°)
OKLab	oklab(50.13% 0.1635 0.0649)
OKLCH	oklch(50.13% 0.176 21.6)
XYZ	xyz(19.6215, 11.0302, 4.2272)
Luminance	0.1103 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22533 #25B2A4

analogous

#B22579 #B22533 #B25E25

triadic

#B22533 #33B225 #2533B2

tetradic

#B22533 #79B225 #25B2A4 #5E25B2

square

#B22533 #79B225 #25B2A4 #5E25B2

split-complementary

#B22533 #25B25E #2579B2

monochromatic

#4D1016 #7F1A24 #B22533 #D73D4D #E1707B

Accessibility & contrast

On white

6.55

#B22533 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#B22533 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22533

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22533	#FFFFFF	#000000	##FFFFFF
##B22533	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504A32

Deuteranopia (green-blind)

#73682E

Tritanopia (blue-blind)

#C4002C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b22533;
/* rgb */ color: rgb(178, 37, 51);
/* oklch */ color: oklch(50.1% 0.176 21.6);

Tailwind

colors: {
  custom: {
    50: '#d16d6a',
    500: '#b22533',
    950: '#000000',
  },
}

SCSS

$custom: #b22533;
$custom-light: #d16d6a;
$custom-dark: #000000;

JSON

{
  "hex": "#b22533",
  "rgb": {
    "r": 178,
    "g": 37,
    "b": 51
  },
  "hsl": {
    "h": 354.043,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.50125,
    "c": 0.17587,
    "h": 21.6
  },
  "luminance": 0.11027
}

Semantic roles & 50–950 ramp

primary

#B22533

secondary

#6BC8BF

accent

#E9D83F

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B22533

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

Preview Lab → · Contrast checker → · Palette generator →