#B22A37#B22A37

#B22A37 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.6% C 0.172 H 21.1°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#B22A37
RGB	rgb(178, 42, 55)
HSL	hsl(354, 62%, 43%)
HSV	hsv(354, 76%, 70%)
CMYK	cmyk(0%, 76.4%, 69.1%, 30.2%)
CIE-LAB	lab(40.25, 54.36, 26.48)
CIE-LCH	lch(40.25, 60.47, 25.98°)
OKLab	oklab(50.6% 0.16 0.0618)
OKLCH	oklch(50.6% 0.172 21.1)
XYZ	xyz(19.8799, 11.3998, 4.7673)
Luminance	0.1140 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22A37 #2AB2A5

analogous

#B22A7B #B22A37 #B2612A

triadic

#B22A37 #37B22A #2A37B2

tetradic

#B22A37 #7BB22A #2AB2A5 #612AB2

square

#B22A37 #7BB22A #2AB2A5 #612AB2

split-complementary

#B22A37 #2AB261 #2A7BB2

monochromatic

#4F1318 #801E28 #B22A37 #D34653 #DF7781

Accessibility & contrast

On white

6.40

#B22A37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#B22A37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22A37

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22A37	#FFFFFF	#000000	##FFFFFF
##B22A37	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524C36

Deuteranopia (green-blind)

#746933

Tritanopia (blue-blind)

#C40030

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b22a37;
/* rgb */ color: rgb(178, 42, 55);
/* oklch */ color: oklch(50.6% 0.172 21.1);

Tailwind

colors: {
  custom: {
    50: '#d16f6d',
    500: '#b22a37',
    950: '#000000',
  },
}

SCSS

$custom: #b22a37;
$custom-light: #d16f6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b22a37",
  "rgb": {
    "r": 178,
    "g": 42,
    "b": 55
  },
  "hsl": {
    "h": 354.265,
    "s": 61.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.506,
    "c": 0.17153,
    "h": 21.1
  },
  "luminance": 0.11397
}

Semantic roles & 50–950 ramp

primary

#B22A37

secondary

#71C7BF

accent

#E5D543

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #B22A37

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

Preview Lab → · Contrast checker → · Palette generator →