#B5374C#B5374C

#B5374C is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.8% C 0.162 H 15.1°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B5374C
RGB	rgb(181, 55, 76)
HSL	hsl(350, 53%, 46%)
HSV	hsv(350, 70%, 71%)
CMYK	cmyk(0%, 69.6%, 58%, 29%)
CIE-LAB	lab(42.88, 51.91, 17.01)
CIE-LCH	lch(42.88, 54.63, 18.14°)
OKLab	oklab(52.79% 0.1559 0.0421)
OKLCH	oklch(52.79% 0.162 15.1)
XYZ	xyz(21.7288, 13.0809, 8.2168)
Luminance	0.1308 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5374C #37B5A0

analogous

#B5378B #B5374C #B56137

triadic

#B5374C #4CB537 #374CB5

tetradic

#B5374C #8BB537 #37B5A0 #6137B5

square

#B5374C #8BB537 #37B5A0 #6137B5

split-complementary

#B5374C #37B561 #378BB5

monochromatic

#571A25 #862938 #B5374C #CD5C6F #DC8B98

Accessibility & contrast

On white

5.81

#B5374C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B5374C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5374C

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5374C	#FFFFFF	#000000	##FFFFFF
##B5374C	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57554C

Deuteranopia (green-blind)

#776F49

Tritanopia (blue-blind)

#C61940

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b5374c;
/* rgb */ color: rgb(181, 55, 76);
/* oklch */ color: oklch(52.8% 0.162 15.1);

Tailwind

colors: {
  custom: {
    50: '#d1767d',
    500: '#b5374c',
    950: '#000000',
  },
}

SCSS

$custom: #b5374c;
$custom-light: #d1767d;
$custom-dark: #000000;

JSON

{
  "hex": "#b5374c",
  "rgb": {
    "r": 181,
    "g": 55,
    "b": 76
  },
  "hsl": {
    "h": 350,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.5279,
    "c": 0.16151,
    "h": 15.1
  },
  "luminance": 0.13078
}

Semantic roles & 50–950 ramp

primary

#B5374C

secondary

#82C6BB

accent

#DDC44B

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B5374C

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

Preview Lab → · Contrast checker → · Palette generator →