#B52A3F#B52A3F

#B52A3F is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.3% C 0.174 H 18.0°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#B52A3F
RGB	rgb(181, 42, 63)
HSL	hsl(351, 62%, 44%)
HSV	hsv(351, 77%, 71%)
CMYK	cmyk(0%, 76.8%, 65.2%, 29%)
CIE-LAB	lab(40.96, 55.70, 22.56)
CIE-LCH	lch(40.96, 60.09, 22.05°)
OKLab	oklab(51.28% 0.1656 0.0539)
OKLCH	oklch(51.28% 0.174 18)
XYZ	xyz(20.7835, 11.8417, 5.8930)
Luminance	0.1184 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52A3F #2AB5A0

analogous

#B52A84 #B52A3F #B55A2A

triadic

#B52A3F #3FB52A #2A3FB5

tetradic

#B52A3F #84B52A #2AB5A0 #5A2AB5

square

#B52A3F #84B52A #2AB5A0 #5A2AB5

split-complementary

#B52A3F #2AB55A #2A84B5

monochromatic

#52131C #831E2E #B52A3F #D4485D #E07989

Accessibility & contrast

On white

6.24

#B52A3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#B52A3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52A3F

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52A3F	#FFFFFF	#000000	##FFFFFF
##B52A3F	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524E3F

Deuteranopia (green-blind)

#756B3B

Tritanopia (blue-blind)

#C70033

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52a3f;
/* rgb */ color: rgb(181, 42, 63);
/* oklch */ color: oklch(51.3% 0.174 18.0);

Tailwind

colors: {
  custom: {
    50: '#d37073',
    500: '#b52a3f',
    950: '#000000',
  },
}

SCSS

$custom: #b52a3f;
$custom-light: #d37073;
$custom-dark: #000000;

JSON

{
  "hex": "#b52a3f",
  "rgb": {
    "r": 181,
    "g": 42,
    "b": 63
  },
  "hsl": {
    "h": 350.935,
    "s": 62.332,
    "l": 43.725
  },
  "oklch": {
    "l": 0.51281,
    "c": 0.17415,
    "h": 18
  },
  "luminance": 0.11839
}

Semantic roles & 50–950 ramp

primary

#B52A3F

secondary

#73C8BB

accent

#E5CD42

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160808

muted

#847B7B

Preview Lab

Preview with #B52A3F

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

Preview Lab → · Contrast checker → · Palette generator →