#B22933#B22933

#B22933 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.4% C 0.173 H 22.5°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#B22933
RGB	rgb(178, 41, 51)
HSL	hsl(356, 63%, 43%)
HSV	hsv(356, 77%, 70%)
CMYK	cmyk(0%, 77%, 71.3%, 30.2%)
CIE-LAB	lab(40.07, 54.49, 28.72)
CIE-LCH	lch(40.07, 61.59, 27.79°)
OKLab	oklab(50.45% 0.1596 0.066)
OKLCH	oklch(50.45% 0.173 22.5)
XYZ	xyz(19.7528, 11.2929, 4.2710)
Luminance	0.1129 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22933 #29B2A8

analogous

#B22978 #B22933 #B26329

triadic

#B22933 #33B229 #2933B2

tetradic

#B22933 #78B229 #29B2A8 #6329B2

square

#B22933 #78B229 #29B2A8 #6329B2

split-complementary

#B22933 #29B263 #2978B2

monochromatic

#4F1216 #801E25 #B22933 #D4444F #DF767E

Accessibility & contrast

On white

6.45

#B22933 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#B22933 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22933

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22933	#FFFFFF	#000000	##FFFFFF
##B22933	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524C32

Deuteranopia (green-blind)

#74692E

Tritanopia (blue-blind)

#C4002E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b22933;
/* rgb */ color: rgb(178, 41, 51);
/* oklch */ color: oklch(50.4% 0.173 22.5);

Tailwind

colors: {
  custom: {
    50: '#d16f6a',
    500: '#b22933',
    950: '#000000',
  },
}

SCSS

$custom: #b22933;
$custom-light: #d16f6a;
$custom-dark: #000000;

JSON

{
  "hex": "#b22933",
  "rgb": {
    "r": 178,
    "g": 41,
    "b": 51
  },
  "hsl": {
    "h": 355.62,
    "s": 62.557,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5045,
    "c": 0.17267,
    "h": 22.5
  },
  "luminance": 0.1129
}

Semantic roles & 50–950 ramp

primary

#B22933

secondary

#70C7C1

accent

#E6DA42

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B22933

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

Preview Lab → · Contrast checker → · Palette generator →