#B22B28#B22B28

#B22B28 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.5% C 0.172 H 26.9°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#B22B28
RGB	rgb(178, 43, 40)
HSL	hsl(1, 63%, 43%)
HSV	hsv(1, 78%, 70%)
CMYK	cmyk(0%, 75.8%, 77.5%, 30.2%)
CIE-LAB	lab(40.16, 53.37, 35.34)
CIE-LCH	lch(40.16, 64.01, 33.51°)
OKLab	oklab(50.47% 0.1536 0.0779)
OKLCH	oklch(50.47% 0.172 26.9)
XYZ	xyz(19.6093, 11.3490, 3.1651)
Luminance	0.1135 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22B28 #28AFB2

analogous

#B2286A #B22B28 #B27028

triadic

#B22B28 #28B22B #2B28B2

tetradic

#B22B28 #6AB228 #28AFB2 #7028B2

square

#B22B28 #6AB228 #28AFB2 #7028B2

split-complementary

#B22B28 #28B270 #286AB2

monochromatic

#4E1312 #801F1D #B22B28 #D54643 #E07775

Accessibility & contrast

On white

6.42

#B22B28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#B22B28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22B28

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22B28	#FFFFFF	#000000	##FFFFFF
##B22B28	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544C26

Deuteranopia (green-blind)

#756922

Tritanopia (blue-blind)

#C4002C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b22b28;
/* rgb */ color: rgb(178, 43, 40);
/* oklch */ color: oklch(50.5% 0.172 26.9);

Tailwind

colors: {
  custom: {
    50: '#d27063',
    500: '#b22b28',
    950: '#000000',
  },
}

SCSS

$custom: #b22b28;
$custom-light: #d27063;
$custom-dark: #000000;

JSON

{
  "hex": "#b22b28",
  "rgb": {
    "r": 178,
    "g": 43,
    "b": 40
  },
  "hsl": {
    "h": 1.304,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.50474,
    "c": 0.17222,
    "h": 26.9
  },
  "luminance": 0.11346
}

Semantic roles & 50–950 ramp

primary

#B22B28

secondary

#6FC5C7

accent

#E3E641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B22B28

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

Preview Lab → · Contrast checker → · Palette generator →