#B22337#B22337

#B22337 is a mid, vivid red. Relative luminance 0.109; OKLCH L 50.0% C 0.177 H 19.7°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#B22337
RGB	rgb(178, 35, 55)
HSL	hsl(352, 67%, 42%)
HSV	hsv(352, 80%, 70%)
CMYK	cmyk(0%, 80.3%, 69.1%, 30.2%)
CIE-LAB	lab(39.49, 56.49, 25.55)
CIE-LCH	lch(39.49, 62.00, 24.34°)
OKLab	oklab(50.04% 0.1668 0.0597)
OKLCH	oklch(50.04% 0.177 19.7)
XYZ	xyz(19.6529, 10.9459, 4.6917)
Luminance	0.1094 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22337 #23B29E

analogous

#B2237F #B22337 #B25623

triadic

#B22337 #37B223 #2337B2

tetradic

#B22337 #7FB223 #23B29E #5623B2

square

#B22337 #7FB223 #23B29E #5623B2

split-complementary

#B22337 #23B256 #237FB2

monochromatic

#4C0F17 #7F1927 #B22337 #D83A50 #E26D7D

Accessibility & contrast

On white

6.59

#B22337 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#B22337 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22337

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22337	#FFFFFF	#000000	##FFFFFF
##B22337	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4A37

Deuteranopia (green-blind)

#726832

Tritanopia (blue-blind)

#C4002C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b22337;
/* rgb */ color: rgb(178, 35, 55);
/* oklch */ color: oklch(50.0% 0.177 19.7);

Tailwind

colors: {
  custom: {
    50: '#d16d6d',
    500: '#b22337',
    950: '#000000',
  },
}

SCSS

$custom: #b22337;
$custom-light: #d16d6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b22337",
  "rgb": {
    "r": 178,
    "g": 35,
    "b": 55
  },
  "hsl": {
    "h": 351.608,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.50039,
    "c": 0.17718,
    "h": 19.7
  },
  "luminance": 0.10943
}

Semantic roles & 50–950 ramp

primary

#B22337

secondary

#68C9BB

accent

#EAD23E

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160807

muted

#847B7A

Preview Lab

Preview with #B22337

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

Preview Lab → · Contrast checker → · Palette generator →