#B52D2B#B52D2B

#B52D2B is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.173 H 26.5°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#B52D2B
RGB	rgb(181, 45, 43)
HSL	hsl(1, 62%, 44%)
HSV	hsv(1, 76%, 71%)
CMYK	cmyk(0%, 75.1%, 76.2%, 29%)
CIE-LAB	lab(41.02, 53.74, 34.71)
CIE-LCH	lch(41.02, 63.98, 32.86°)
OKLab	oklab(51.23% 0.1551 0.0772)
OKLCH	oklch(51.23% 0.173 26.5)
XYZ	xyz(20.4329, 11.8781, 3.5019)
Luminance	0.1187 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52D2B #2BB3B5

analogous

#B52B6E #B52D2B #B5722B

triadic

#B52D2B #2BB52D #2D2BB5

tetradic

#B52D2B #6EB52B #2BB3B5 #722BB5

square

#B52D2B #6EB52B #2BB3B5 #722BB5

split-complementary

#B52D2B #2BB572 #2B6EB5

monochromatic

#521414 #84211F #B52D2B #D44B49 #E07C7B

Accessibility & contrast

On white

6.22

#B52D2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B52D2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52D2B

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52D2B	#FFFFFF	#000000	##FFFFFF
##B52D2B	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E29

Deuteranopia (green-blind)

#786B26

Tritanopia (blue-blind)

#C7002E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52d2b;
/* rgb */ color: rgb(181, 45, 43);
/* oklch */ color: oklch(51.2% 0.173 26.5);

Tailwind

colors: {
  custom: {
    50: '#d47165',
    500: '#b52d2b',
    950: '#000000',
  },
}

SCSS

$custom: #b52d2b;
$custom-light: #d47165;
$custom-dark: #000000;

JSON

{
  "hex": "#b52d2b",
  "rgb": {
    "r": 181,
    "g": 45,
    "b": 43
  },
  "hsl": {
    "h": 0.87,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.5123,
    "c": 0.17319,
    "h": 26.5
  },
  "luminance": 0.11875
}

Semantic roles & 50–950 ramp

primary

#B52D2B

secondary

#74C7C8

accent

#E2E543

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B52D2B

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

Preview Lab → · Contrast checker → · Palette generator →