#B52B28#B52B28

#B52B28 is a mid, vivid red. Relative luminance 0.117; OKLCH L 51.0% C 0.175 H 27.0°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#B52B28
RGB	rgb(181, 43, 40)
HSL	hsl(1, 64%, 43%)
HSV	hsv(1, 78%, 71%)
CMYK	cmyk(0%, 76.2%, 77.9%, 29%)
CIE-LAB	lab(40.75, 54.30, 36.14)
CIE-LCH	lch(40.75, 65.22, 33.64°)
OKLab	oklab(51.02% 0.1562 0.0794)
OKLCH	oklch(51.02% 0.175 27)
XYZ	xyz(20.3054, 11.7079, 3.1978)
Luminance	0.1171 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52B28 #28B2B5

analogous

#B5286B #B52B28 #B57228

triadic

#B52B28 #28B52B #2B28B5

tetradic

#B52B28 #6BB528 #28B2B5 #7228B5

square

#B52B28 #6BB528 #28B2B5 #7228B5

split-complementary

#B52B28 #28B572 #286BB5

monochromatic

#511312 #831F1D #B52B28 #D64844 #E17977

Accessibility & contrast

On white

6.29

#B52B28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#B52B28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52B28

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52B28	#FFFFFF	#000000	##FFFFFF
##B52B28	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D26

Deuteranopia (green-blind)

#776B22

Tritanopia (blue-blind)

#C8002C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b52b28;
/* rgb */ color: rgb(181, 43, 40);
/* oklch */ color: oklch(51.0% 0.175 27.0);

Tailwind

colors: {
  custom: {
    50: '#d47063',
    500: '#b52b28',
    950: '#000000',
  },
}

SCSS

$custom: #b52b28;
$custom-light: #d47063;
$custom-dark: #000000;

JSON

{
  "hex": "#b52b28",
  "rgb": {
    "r": 181,
    "g": 43,
    "b": 40
  },
  "hsl": {
    "h": 1.277,
    "s": 63.801,
    "l": 43.333
  },
  "oklch": {
    "l": 0.51015,
    "c": 0.1752,
    "h": 27
  },
  "luminance": 0.11705
}

Semantic roles & 50–950 ramp

primary

#B52B28

secondary

#70C7C8

accent

#E3E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B52B28

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

Preview Lab → · Contrast checker → · Palette generator →