#B22333#B22333

#B22333 is a mid, vivid red. Relative luminance 0.109; OKLCH L 50.0% C 0.177 H 21.3°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#B22333
RGB	rgb(178, 35, 51)
HSL	hsl(353, 67%, 42%)
HSV	hsv(353, 80%, 70%)
CMYK	cmyk(0%, 80.3%, 71.3%, 30.2%)
CIE-LAB	lab(39.43, 56.29, 27.95)
CIE-LCH	lch(39.43, 62.85, 26.40°)
OKLab	oklab(49.97% 0.1653 0.0643)
OKLCH	oklch(49.97% 0.177 21.3)
XYZ	xyz(19.5609, 10.9091, 4.2070)
Luminance	0.1091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22333 #23B2A2

analogous

#B2237B #B22333 #B25B23

triadic

#B22333 #33B223 #2333B2

tetradic

#B22333 #7BB223 #23B2A2 #5B23B2

square

#B22333 #7BB223 #23B2A2 #5B23B2

split-complementary

#B22333 #23B25B #237BB2

monochromatic

#4C0F16 #7F1924 #B22333 #D83A4C #E26D7A

Accessibility & contrast

On white

6.60

#B22333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#B22333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22333

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22333	#FFFFFF	#000000	##FFFFFF
##B22333	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4932

Deuteranopia (green-blind)

#73682E

Tritanopia (blue-blind)

#C4002B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b22333;
/* rgb */ color: rgb(178, 35, 51);
/* oklch */ color: oklch(50.0% 0.177 21.3);

Tailwind

colors: {
  custom: {
    50: '#d26d6a',
    500: '#b22333',
    950: '#000000',
  },
}

SCSS

$custom: #b22333;
$custom-light: #d26d6a;
$custom-dark: #000000;

JSON

{
  "hex": "#b22333",
  "rgb": {
    "r": 178,
    "g": 35,
    "b": 51
  },
  "hsl": {
    "h": 353.287,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49973,
    "c": 0.17738,
    "h": 21.3
  },
  "luminance": 0.10906
}

Semantic roles & 50–950 ramp

primary

#B22333

secondary

#68C9BE

accent

#EAD73E

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B22333

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

Preview Lab → · Contrast checker → · Palette generator →