#B22529#B22529

#B22529 is a mid, vivid red. Relative luminance 0.109; OKLCH L 50.0% C 0.177 H 25.2°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#B22529
RGB	rgb(178, 37, 41)
HSL	hsl(358, 66%, 42%)
HSV	hsv(358, 79%, 70%)
CMYK	cmyk(0%, 79.2%, 77%, 30.2%)
CIE-LAB	lab(39.50, 55.30, 34.04)
CIE-LCH	lch(39.50, 64.93, 31.62°)
OKLab	oklab(49.98% 0.1599 0.0754)
OKLCH	oklch(49.98% 0.177 25.2)
XYZ	xyz(19.4242, 10.9513, 3.1884)
Luminance	0.1095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22529 #25B2AE

analogous

#B22570 #B22529 #B26825

triadic

#B22529 #29B225 #2529B2

tetradic

#B22529 #70B225 #25B2AE #6825B2

square

#B22529 #70B225 #25B2AE #6825B2

split-complementary

#B22529 #25B268 #2570B2

monochromatic

#4D1012 #7F1A1D #B22529 #D73D42 #E17073

Accessibility & contrast

On white

6.58

#B22529 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#B22529 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22529

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22529	#FFFFFF	#000000	##FFFFFF
##B22529	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514A27

Deuteranopia (green-blind)

#746823

Tritanopia (blue-blind)

#C40028

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b22529;
/* rgb */ color: rgb(178, 37, 41);
/* oklch */ color: oklch(50.0% 0.177 25.2);

Tailwind

colors: {
  custom: {
    50: '#d26d63',
    500: '#b22529',
    950: '#000000',
  },
}

SCSS

$custom: #b22529;
$custom-light: #d26d63;
$custom-dark: #000000;

JSON

{
  "hex": "#b22529",
  "rgb": {
    "r": 178,
    "g": 37,
    "b": 41
  },
  "hsl": {
    "h": 358.298,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.49984,
    "c": 0.17678,
    "h": 25.2
  },
  "luminance": 0.10948
}

Semantic roles & 50–950 ramp

primary

#B22529

secondary

#6BC8C5

accent

#E9E43F

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B22529

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

Preview Lab → · Contrast checker → · Palette generator →