#B52C3B#B52C3B

#B52C3B is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.4% C 0.173 H 20.1°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#B52C3B
RGB	rgb(181, 44, 59)
HSL	hsl(353, 61%, 44%)
HSV	hsv(353, 76%, 71%)
CMYK	cmyk(0%, 75.7%, 67.4%, 29%)
CIE-LAB	lab(41.13, 54.82, 25.24)
CIE-LCH	lch(41.13, 60.35, 24.72°)
OKLab	oklab(51.38% 0.162 0.0594)
OKLCH	oklch(51.38% 0.173 20.1)
XYZ	xyz(20.7484, 11.9440, 5.3497)
Luminance	0.1194 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52C3B #2CB5A6

analogous

#B52C80 #B52C3B #B5622C

triadic

#B52C3B #3BB52C #2C3BB5

tetradic

#B52C3B #80B52C #2CB5A6 #622CB5

square

#B52C3B #80B52C #2CB5A6 #622CB5

split-complementary

#B52C3B #2CB562 #2C80B5

monochromatic

#53141B #84202B #B52C3B #D34B5A #DF7C87

Accessibility & contrast

On white

6.20

#B52C3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B52C3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52C3B

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52C3B	#FFFFFF	#000000	##FFFFFF
##B52C3B	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E3A

Deuteranopia (green-blind)

#766B37

Tritanopia (blue-blind)

#C70033

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52c3b;
/* rgb */ color: rgb(181, 44, 59);
/* oklch */ color: oklch(51.4% 0.173 20.1);

Tailwind

colors: {
  custom: {
    50: '#d37170',
    500: '#b52c3b',
    950: '#000000',
  },
}

SCSS

$custom: #b52c3b;
$custom-light: #d37170;
$custom-dark: #000000;

JSON

{
  "hex": "#b52c3b",
  "rgb": {
    "r": 181,
    "g": 44,
    "b": 59
  },
  "hsl": {
    "h": 353.431,
    "s": 60.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.5138,
    "c": 0.17253,
    "h": 20.1
  },
  "luminance": 0.11941
}

Semantic roles & 50–950 ramp

primary

#B52C3B

secondary

#75C8BF

accent

#E4D244

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160807

muted

#847B7A

Preview Lab

Preview with #B52C3B

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

Preview Lab → · Contrast checker → · Palette generator →