#B22B33#B22B33

#B22B33 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.6% C 0.171 H 22.9°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#B22B33
RGB	rgb(178, 43, 51)
HSL	hsl(356, 61%, 43%)
HSV	hsv(356, 76%, 70%)
CMYK	cmyk(0%, 75.8%, 71.3%, 30.2%)
CIE-LAB	lab(40.30, 53.83, 29.00)
CIE-LCH	lch(40.30, 61.14, 28.31°)
OKLab	oklab(50.62% 0.1575 0.0666)
OKLCH	oklch(50.62% 0.171 22.9)
XYZ	xyz(19.8238, 11.4348, 4.2946)
Luminance	0.1143 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22B33 #2BB2AA

analogous

#B22B77 #B22B33 #B2662B

triadic

#B22B33 #33B22B #2B33B2

tetradic

#B22B33 #77B22B #2BB2AA #662BB2

square

#B22B33 #77B22B #2BB2AA #662BB2

split-complementary

#B22B33 #2BB266 #2B77B2

monochromatic

#4F1317 #811F25 #B22B33 #D34850 #DF797F

Accessibility & contrast

On white

6.39

#B22B33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#B22B33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22B33

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22B33	#FFFFFF	#000000	##FFFFFF
##B22B33	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534D32

Deuteranopia (green-blind)

#75692E

Tritanopia (blue-blind)

#C4002F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b22b33;
/* rgb */ color: rgb(178, 43, 51);
/* oklch */ color: oklch(50.6% 0.171 22.9);

Tailwind

colors: {
  custom: {
    50: '#d1706a',
    500: '#b22b33',
    950: '#000000',
  },
}

SCSS

$custom: #b22b33;
$custom-light: #d1706a;
$custom-dark: #000000;

JSON

{
  "hex": "#b22b33",
  "rgb": {
    "r": 178,
    "g": 43,
    "b": 51
  },
  "hsl": {
    "h": 356.444,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50624,
    "c": 0.17099,
    "h": 22.9
  },
  "luminance": 0.11432
}

Semantic roles & 50–950 ramp

primary

#B22B33

secondary

#72C7C2

accent

#E4DB44

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B22B33

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

Preview Lab → · Contrast checker → · Palette generator →