#B52A2B#B52A2B

#B52A2B is a mid, vivid red. Relative luminance 0.117; OKLCH L 51.0% C 0.176 H 25.8°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#B52A2B
RGB	rgb(181, 42, 43)
HSL	hsl(360, 62%, 44%)
HSV	hsv(360, 77%, 71%)
CMYK	cmyk(0%, 76.8%, 76.2%, 29%)
CIE-LAB	lab(40.67, 54.73, 34.32)
CIE-LCH	lch(40.67, 64.60, 32.09°)
OKLab	oklab(50.97% 0.1582 0.0763)
OKLCH	oklch(50.97% 0.176 25.8)
XYZ	xyz(20.3225, 11.6573, 3.4651)
Luminance	0.1165 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52A2B #2AB5B4

analogous

#B52A70 #B52A2B #B56E2A

triadic

#B52A2B #2BB52A #2A2BB5

tetradic

#B52A2B #70B52A #2AB5B4 #6E2AB5

square

#B52A2B #70B52A #2AB5B4 #6E2AB5

split-complementary

#B52A2B #2AB56E #2A70B5

monochromatic

#521313 #831E1F #B52A2B #D44849 #E0797A

Accessibility & contrast

On white

6.30

#B52A2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#B52A2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52A2B

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52A2B	#FFFFFF	#000000	##FFFFFF
##B52A2B	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D29

Deuteranopia (green-blind)

#776B26

Tritanopia (blue-blind)

#C7002C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b52a2b;
/* rgb */ color: rgb(181, 42, 43);
/* oklch */ color: oklch(51.0% 0.176 25.8);

Tailwind

colors: {
  custom: {
    50: '#d47065',
    500: '#b52a2b',
    950: '#000000',
  },
}

SCSS

$custom: #b52a2b;
$custom-light: #d47065;
$custom-dark: #000000;

JSON

{
  "hex": "#b52a2b",
  "rgb": {
    "r": 181,
    "g": 42,
    "b": 43
  },
  "hsl": {
    "h": 359.568,
    "s": 62.332,
    "l": 43.725
  },
  "oklch": {
    "l": 0.50965,
    "c": 0.17562,
    "h": 25.8
  },
  "luminance": 0.11654
}

Semantic roles & 50–950 ramp

primary

#B52A2B

secondary

#73C8C7

accent

#E5E442

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B52A2B

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

Preview Lab → · Contrast checker → · Palette generator →