#B22931#B22931

#B22931 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.4% C 0.173 H 23.2°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#B22931
RGB	rgb(178, 41, 49)
HSL	hsl(356, 63%, 43%)
HSV	hsv(356, 77%, 70%)
CMYK	cmyk(0%, 77%, 72.5%, 30.2%)
CIE-LAB	lab(40.04, 54.39, 29.89)
CIE-LCH	lch(40.04, 62.07, 28.79°)
OKLab	oklab(50.42% 0.1588 0.0682)
OKLCH	oklch(50.42% 0.173 23.2)
XYZ	xyz(19.7097, 11.2757, 4.0438)
Luminance	0.1127 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22931 #29B2AA

analogous

#B22976 #B22931 #B26529

triadic

#B22931 #31B229 #2931B2

tetradic

#B22931 #76B229 #29B2AA #6529B2

square

#B22931 #76B229 #29B2AA #6529B2

split-complementary

#B22931 #29B265 #2976B2

monochromatic

#4F1216 #801E23 #B22931 #D4444D #DF767C

Accessibility & contrast

On white

6.45

#B22931 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#B22931 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22931

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22931	#FFFFFF	#000000	##FFFFFF
##B22931	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524C30

Deuteranopia (green-blind)

#74692C

Tritanopia (blue-blind)

#C4002D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b22931;
/* rgb */ color: rgb(178, 41, 49);
/* oklch */ color: oklch(50.4% 0.173 23.2);

Tailwind

colors: {
  custom: {
    50: '#d16f69',
    500: '#b22931',
    950: '#000000',
  },
}

SCSS

$custom: #b22931;
$custom-light: #d16f69;
$custom-dark: #000000;

JSON

{
  "hex": "#b22931",
  "rgb": {
    "r": 178,
    "g": 41,
    "b": 49
  },
  "hsl": {
    "h": 356.496,
    "s": 62.557,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5042,
    "c": 0.17284,
    "h": 23.2
  },
  "luminance": 0.11273
}

Semantic roles & 50–950 ramp

primary

#B22931

secondary

#70C7C2

accent

#E6DC42

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B22931

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

Preview Lab → · Contrast checker → · Palette generator →