#B52F2A#B52F2A

#B52F2A is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.4% C 0.172 H 27.3°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B52F2A
RGB	rgb(181, 47, 42)
HSL	hsl(2, 62%, 44%)
HSV	hsv(2, 77%, 71%)
CMYK	cmyk(0%, 74%, 76.8%, 29%)
CIE-LAB	lab(41.26, 53.01, 35.54)
CIE-LCH	lch(41.26, 63.82, 33.84°)
OKLab	oklab(51.4% 0.1525 0.0787)
OKLCH	oklch(51.4% 0.172 27.3)
XYZ	xyz(20.4929, 12.0271, 3.4325)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52F2A #2AB0B5

analogous

#B52A6A #B52F2A #B5742A

triadic

#B52F2A #2AB52F #2F2AB5

tetradic

#B52F2A #6AB52A #2AB0B5 #742AB5

square

#B52F2A #6AB52A #2AB0B5 #742AB5

split-complementary

#B52F2A #2AB574 #2A6AB5

monochromatic

#521513 #83221E #B52F2A #D44D48 #E07D79

Accessibility & contrast

On white

6.17

#B52F2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B52F2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52F2A

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52F2A	#FFFFFF	#000000	##FFFFFF
##B52F2A	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F28

Deuteranopia (green-blind)

#786C25

Tritanopia (blue-blind)

#C7002F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52f2a;
/* rgb */ color: rgb(181, 47, 42);
/* oklch */ color: oklch(51.4% 0.172 27.3);

Tailwind

colors: {
  custom: {
    50: '#d47264',
    500: '#b52f2a',
    950: '#000000',
  },
}

SCSS

$custom: #b52f2a;
$custom-light: #d47264;
$custom-dark: #000000;

JSON

{
  "hex": "#b52f2a",
  "rgb": {
    "r": 181,
    "g": 47,
    "b": 42
  },
  "hsl": {
    "h": 2.158,
    "s": 62.332,
    "l": 43.725
  },
  "oklch": {
    "l": 0.51403,
    "c": 0.17164,
    "h": 27.3
  },
  "luminance": 0.12024
}

Semantic roles & 50–950 ramp

primary

#B52F2A

secondary

#73C5C8

accent

#E0E542

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B52F2A

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

Preview Lab → · Contrast checker → · Palette generator →