#B52A2A#B52A2A

#B52A2A is a mid, vivid red. Relative luminance 0.116; OKLCH L 51.0% C 0.176 H 26.1°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#B52A2A
RGB	rgb(181, 42, 42)
HSL	hsl(0, 62%, 44%)
HSV	hsv(0, 77%, 71%)
CMYK	cmyk(0%, 76.8%, 76.8%, 29%)
CIE-LAB	lab(40.65, 54.70, 34.89)
CIE-LCH	lch(40.65, 64.88, 32.53°)
OKLab	oklab(50.95% 0.1578 0.0773)
OKLCH	oklch(50.95% 0.176 26.1)
XYZ	xyz(20.3043, 11.6501, 3.3696)
Luminance	0.1165 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52A2A #2AB5B5

analogous

#B52A6F #B52A2A #B56F2A

triadic

#B52A2A #2AB52A #2A2AB5

tetradic

#B52A2A #6FB52A #2AB5B5 #6F2AB5

square

#B52A2A #6FB52A #2AB5B5 #6F2AB5

split-complementary

#B52A2A #2AB56F #2A6FB5

monochromatic

#521313 #831E1E #B52A2A #D44848 #E07979

Accessibility & contrast

On white

6.31

#B52A2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#B52A2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52A2A

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52A2A	#FFFFFF	#000000	##FFFFFF
##B52A2A	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D28

Deuteranopia (green-blind)

#776B24

Tritanopia (blue-blind)

#C7002C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b52a2a;
/* rgb */ color: rgb(181, 42, 42);
/* oklch */ color: oklch(51.0% 0.176 26.1);

Tailwind

colors: {
  custom: {
    50: '#d47064',
    500: '#b52a2a',
    950: '#000000',
  },
}

SCSS

$custom: #b52a2a;
$custom-light: #d47064;
$custom-dark: #000000;

JSON

{
  "hex": "#b52a2a",
  "rgb": {
    "r": 181,
    "g": 42,
    "b": 42
  },
  "hsl": {
    "h": 0,
    "s": 62.332,
    "l": 43.725
  },
  "oklch": {
    "l": 0.50952,
    "c": 0.17574,
    "h": 26.1
  },
  "luminance": 0.11647
}

Semantic roles & 50–950 ramp

primary

#B52A2A

secondary

#73C8C8

accent

#E5E542

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B52A2A

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

Preview Lab → · Contrast checker → · Palette generator →