#B52D3B#B52D3B

#B52D3B is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.5% C 0.172 H 20.4°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B52D3B
RGB	rgb(181, 45, 59)
HSL	hsl(354, 60%, 44%)
HSV	hsv(354, 75%, 71%)
CMYK	cmyk(0%, 75.1%, 67.4%, 29%)
CIE-LAB	lab(41.25, 54.49, 25.39)
CIE-LCH	lch(41.25, 60.11, 24.99°)
OKLab	oklab(51.47% 0.1609 0.0598)
OKLCH	oklch(51.47% 0.172 20.4)
XYZ	xyz(20.7861, 12.0194, 5.3623)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52D3B #2DB5A7

analogous

#B52D7F #B52D3B #B5632D

triadic

#B52D3B #3BB52D #2D3BB5

tetradic

#B52D3B #7FB52D #2DB5A7 #632DB5

square

#B52D3B #7FB52D #2DB5A7 #632DB5

split-complementary

#B52D3B #2DB563 #2D7FB5

monochromatic

#53151B #84212B #B52D3B #D34D5A #DF7E88

Accessibility & contrast

On white

6.17

#B52D3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B52D3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52D3B

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52D3B	#FFFFFF	#000000	##FFFFFF
##B52D3B	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)

#544F3A

Deuteranopia (green-blind)

#766C37

Tritanopia (blue-blind)

#C70033

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52d3b;
/* rgb */ color: rgb(181, 45, 59);
/* oklch */ color: oklch(51.5% 0.172 20.4);

Tailwind

colors: {
  custom: {
    50: '#d37170',
    500: '#b52d3b',
    950: '#000000',
  },
}

SCSS

$custom: #b52d3b;
$custom-light: #d37170;
$custom-dark: #000000;

JSON

{
  "hex": "#b52d3b",
  "rgb": {
    "r": 181,
    "g": 45,
    "b": 59
  },
  "hsl": {
    "h": 353.824,
    "s": 60.177,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51469,
    "c": 0.17164,
    "h": 20.4
  },
  "luminance": 0.12016
}

Semantic roles & 50–950 ramp

primary

#B52D3B

secondary

#76C7BF

accent

#E3D344

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160807

muted

#847B7A

Preview Lab

Preview with #B52D3B

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

Preview Lab → · Contrast checker → · Palette generator →