#B52F2B#B52F2B

#B52F2B is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.4% C 0.172 H 27.0°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B52F2B
RGB	rgb(181, 47, 43)
HSL	hsl(2, 62%, 44%)
HSV	hsv(2, 76%, 71%)
CMYK	cmyk(0%, 74%, 76.2%, 29%)
CIE-LAB	lab(41.27, 53.05, 34.98)
CIE-LCH	lch(41.27, 63.55, 33.40°)
OKLab	oklab(51.42% 0.1529 0.0778)
OKLCH	oklch(51.42% 0.172 27)
XYZ	xyz(20.5110, 12.0344, 3.5279)
Luminance	0.1203 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52F2B #2BB1B5

analogous

#B52B6C #B52F2B #B5742B

triadic

#B52F2B #2BB52F #2F2BB5

tetradic

#B52F2B #6CB52B #2BB1B5 #742BB5

square

#B52F2B #6CB52B #2BB1B5 #742BB5

split-complementary

#B52F2B #2BB574 #2B6CB5

monochromatic

#521514 #84221F #B52F2B #D44D49 #E07E7B

Accessibility & contrast

On white

6.17

#B52F2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B52F2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52F2B

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52F2B	#FFFFFF	#000000	##FFFFFF
##B52F2B	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F29

Deuteranopia (green-blind)

#786C26

Tritanopia (blue-blind)

#C70030

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52f2b;
/* rgb */ color: rgb(181, 47, 43);
/* oklch */ color: oklch(51.4% 0.172 27.0);

Tailwind

colors: {
  custom: {
    50: '#d47265',
    500: '#b52f2b',
    950: '#000000',
  },
}

SCSS

$custom: #b52f2b;
$custom-light: #d47265;
$custom-dark: #000000;

JSON

{
  "hex": "#b52f2b",
  "rgb": {
    "r": 181,
    "g": 47,
    "b": 43
  },
  "hsl": {
    "h": 1.739,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.51415,
    "c": 0.17151,
    "h": 27
  },
  "luminance": 0.12031
}

Semantic roles & 50–950 ramp

primary

#B52F2B

secondary

#74C5C8

accent

#E0E543

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B52F2B

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

Preview Lab → · Contrast checker → · Palette generator →