#B5374E#B5374E

#B5374E is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.8% C 0.162 H 14.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#B5374E
RGB	rgb(181, 55, 78)
HSL	hsl(349, 53%, 46%)
HSV	hsv(349, 70%, 71%)
CMYK	cmyk(0%, 69.6%, 56.9%, 29%)
CIE-LAB	lab(42.93, 52.06, 15.83)
CIE-LCH	lch(42.93, 54.41, 16.91°)
OKLab	oklab(52.84% 0.1567 0.0394)
OKLCH	oklch(52.84% 0.162 14.1)
XYZ	xyz(21.7994, 13.1092, 8.5887)
Luminance	0.1311 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5374E #37B59E

analogous

#B5378D #B5374E #B55F37

triadic

#B5374E #4EB537 #374EB5

tetradic

#B5374E #8DB537 #37B59E #5F37B5

square

#B5374E #8DB537 #37B59E #5F37B5

split-complementary

#B5374E #37B55F #378DB5

monochromatic

#571A26 #86293A #B5374E #CD5C71 #DC8B9A

Accessibility & contrast

On white

5.80

#B5374E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B5374E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5374E

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5374E	#FFFFFF	#000000	##FFFFFF
##B5374E	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57554E

Deuteranopia (green-blind)

#776F4B

Tritanopia (blue-blind)

#C61A40

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b5374e;
/* rgb */ color: rgb(181, 55, 78);
/* oklch */ color: oklch(52.8% 0.162 14.1);

Tailwind

colors: {
  custom: {
    50: '#d1767f',
    500: '#b5374e',
    950: '#000000',
  },
}

SCSS

$custom: #b5374e;
$custom-light: #d1767f;
$custom-dark: #000000;

JSON

{
  "hex": "#b5374e",
  "rgb": {
    "r": 181,
    "g": 55,
    "b": 78
  },
  "hsl": {
    "h": 349.048,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52836,
    "c": 0.16159,
    "h": 14.1
  },
  "luminance": 0.13106
}

Semantic roles & 50–950 ramp

primary

#B5374E

secondary

#82C6BA

accent

#DDC24B

background

#FDF7F7

surface

#FBEEEE

border

#D4C9C9

text

#15090A

muted

#837B7C

Preview Lab

Preview with #B5374E

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

Preview Lab → · Contrast checker → · Palette generator →