#B22C37#B22C37

#B22C37 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.8% C 0.170 H 21.6°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#B22C37
RGB	rgb(178, 44, 55)
HSL	hsl(355, 60%, 44%)
HSV	hsv(355, 75%, 70%)
CMYK	cmyk(0%, 75.3%, 69.1%, 30.2%)
CIE-LAB	lab(40.48, 53.69, 26.78)
CIE-LCH	lch(40.48, 60.00, 26.50°)
OKLab	oklab(50.78% 0.1579 0.0624)
OKLCH	oklch(50.78% 0.17 21.6)
XYZ	xyz(19.9526, 11.5452, 4.7915)
Luminance	0.1154 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22C37 #2CB2A7

analogous

#B22C7A #B22C37 #B2642C

triadic

#B22C37 #37B22C #2C37B2

tetradic

#B22C37 #7AB22C #2CB2A7 #642CB2

square

#B22C37 #7AB22C #2CB2A7 #642CB2

split-complementary

#B22C37 #2CB264 #2C7AB2

monochromatic

#501419 #812028 #B22C37 #D24954 #DE7A82

Accessibility & contrast

On white

6.35

#B22C37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#B22C37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22C37

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22C37	#FFFFFF	#000000	##FFFFFF
##B22C37	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534D36

Deuteranopia (green-blind)

#756A33

Tritanopia (blue-blind)

#C40031

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b22c37;
/* rgb */ color: rgb(178, 44, 55);
/* oklch */ color: oklch(50.8% 0.170 21.6);

Tailwind

colors: {
  custom: {
    50: '#d1706d',
    500: '#b22c37',
    950: '#000000',
  },
}

SCSS

$custom: #b22c37;
$custom-light: #d1706d;
$custom-dark: #000000;

JSON

{
  "hex": "#b22c37",
  "rgb": {
    "r": 178,
    "g": 44,
    "b": 55
  },
  "hsl": {
    "h": 355.075,
    "s": 60.36,
    "l": 43.529
  },
  "oklch": {
    "l": 0.50777,
    "c": 0.16978,
    "h": 21.6
  },
  "luminance": 0.11542
}

Semantic roles & 50–950 ramp

primary

#B22C37

secondary

#73C6C0

accent

#E4D644

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #B22C37

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

Preview Lab → · Contrast checker → · Palette generator →