#B22729#B22729

#B22729 is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.1% C 0.175 H 25.7°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#B22729
RGB	rgb(178, 39, 41)
HSL	hsl(359, 64%, 43%)
HSV	hsv(359, 78%, 70%)
CMYK	cmyk(0%, 78.1%, 77%, 30.2%)
CIE-LAB	lab(39.71, 54.69, 34.27)
CIE-LCH	lch(39.71, 64.54, 32.08°)
OKLab	oklab(50.14% 0.158 0.0759)
OKLCH	oklch(50.14% 0.175 25.7)
XYZ	xyz(19.4882, 11.0792, 3.2098)
Luminance	0.1108 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22729 #27B2B0

analogous

#B2276E #B22729 #B26B27

triadic

#B22729 #29B227 #2729B2

tetradic

#B22729 #6EB227 #27B2B0 #6B27B2

square

#B22729 #6EB227 #27B2B0 #6B27B2

split-complementary

#B22729 #27B26B #276EB2

monochromatic

#4E1112 #801C1D #B22729 #D54143 #E07375

Accessibility & contrast

On white

6.53

#B22729 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B22729 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22729

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22729	#FFFFFF	#000000	##FFFFFF
##B22729	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524A27

Deuteranopia (green-blind)

#746823

Tritanopia (blue-blind)

#C4002A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b22729;
/* rgb */ color: rgb(178, 39, 41);
/* oklch */ color: oklch(50.1% 0.175 25.7);

Tailwind

colors: {
  custom: {
    50: '#d26e63',
    500: '#b22729',
    950: '#000000',
  },
}

SCSS

$custom: #b22729;
$custom-light: #d26e63;
$custom-dark: #000000;

JSON

{
  "hex": "#b22729",
  "rgb": {
    "r": 178,
    "g": 39,
    "b": 41
  },
  "hsl": {
    "h": 359.137,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50144,
    "c": 0.17527,
    "h": 25.7
  },
  "luminance": 0.11076
}

Semantic roles & 50–950 ramp

primary

#B22729

secondary

#6DC8C6

accent

#E7E541

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B22729

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

Preview Lab → · Contrast checker → · Palette generator →