#B22B2B#B22B2B

#B22B2B is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.5% C 0.172 H 25.9°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#B22B2B
RGB	rgb(178, 43, 43)
HSL	hsl(0, 61%, 43%)
HSV	hsv(0, 76%, 70%)
CMYK	cmyk(0%, 75.8%, 75.8%, 30.2%)
CIE-LAB	lab(40.20, 53.48, 33.64)
CIE-LCH	lch(40.20, 63.18, 32.17°)
OKLab	oklab(50.51% 0.1546 0.075)
OKLCH	oklch(50.51% 0.172 25.9)
XYZ	xyz(19.6623, 11.3702, 3.4444)
Luminance	0.1137 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22B2B #2BB2B2

analogous

#B22B6E #B22B2B #B26E2B

triadic

#B22B2B #2BB22B #2B2BB2

tetradic

#B22B2B #6EB22B #2BB2B2 #6E2BB2

square

#B22B2B #6EB22B #2BB2B2 #6E2BB2

split-complementary

#B22B2B #2BB26E #2B6EB2

monochromatic

#4F1313 #811F1F #B22B2B #D34848 #DF7979

Accessibility & contrast

On white

6.42

#B22B2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#B22B2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22B2B

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22B2B	#FFFFFF	#000000	##FFFFFF
##B22B2B	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)

#544C29

Deuteranopia (green-blind)

#756926

Tritanopia (blue-blind)

#C4002D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b22b2b;
/* rgb */ color: rgb(178, 43, 43);
/* oklch */ color: oklch(50.5% 0.172 25.9);

Tailwind

colors: {
  custom: {
    50: '#d27065',
    500: '#b22b2b',
    950: '#000000',
  },
}

SCSS

$custom: #b22b2b;
$custom-light: #d27065;
$custom-dark: #000000;

JSON

{
  "hex": "#b22b2b",
  "rgb": {
    "r": 178,
    "g": 43,
    "b": 43
  },
  "hsl": {
    "h": 0,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50511,
    "c": 0.17184,
    "h": 25.9
  },
  "luminance": 0.11367
}

Semantic roles & 50–950 ramp

primary

#B22B2B

secondary

#72C7C7

accent

#E4E444

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B22B2B

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

Preview Lab → · Contrast checker → · Palette generator →