#B22937#B22937

#B22937 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.5% C 0.172 H 20.9°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#B22937
RGB	rgb(178, 41, 55)
HSL	hsl(354, 63%, 43%)
HSV	hsv(354, 77%, 70%)
CMYK	cmyk(0%, 77%, 69.1%, 30.2%)
CIE-LAB	lab(40.13, 54.68, 26.34)
CIE-LCH	lch(40.13, 60.70, 25.72°)
OKLab	oklab(50.52% 0.1611 0.0614)
OKLCH	oklch(50.52% 0.172 20.9)
XYZ	xyz(19.8448, 11.3297, 4.7556)
Luminance	0.1133 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22937 #29B2A4

analogous

#B2297B #B22937 #B26029

triadic

#B22937 #37B229 #2937B2

tetradic

#B22937 #7BB229 #29B2A4 #6029B2

square

#B22937 #7BB229 #29B2A4 #6029B2

split-complementary

#B22937 #29B260 #297BB2

monochromatic

#4F1218 #801E28 #B22937 #D44453 #DF7681

Accessibility & contrast

On white

6.43

#B22937 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#B22937 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22937

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22937	#FFFFFF	#000000	##FFFFFF
##B22937	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514C36

Deuteranopia (green-blind)

#746933

Tritanopia (blue-blind)

#C40030

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b22937;
/* rgb */ color: rgb(178, 41, 55);
/* oklch */ color: oklch(50.5% 0.172 20.9);

Tailwind

colors: {
  custom: {
    50: '#d16f6d',
    500: '#b22937',
    950: '#000000',
  },
}

SCSS

$custom: #b22937;
$custom-light: #d16f6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b22937",
  "rgb": {
    "r": 178,
    "g": 41,
    "b": 55
  },
  "hsl": {
    "h": 353.869,
    "s": 62.557,
    "l": 42.941
  },
  "oklch": {
    "l": 0.50515,
    "c": 0.17238,
    "h": 20.9
  },
  "luminance": 0.11327
}

Semantic roles & 50–950 ramp

primary

#B22937

secondary

#70C7BE

accent

#E6D542

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #B22937

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

Preview Lab → · Contrast checker → · Palette generator →