#B5374A#B5374A

#B5374A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.161 H 16.1°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B5374A
RGB	rgb(181, 55, 74)
HSL	hsl(351, 53%, 46%)
HSV	hsv(351, 70%, 71%)
CMYK	cmyk(0%, 69.6%, 59.1%, 29%)
CIE-LAB	lab(42.84, 51.77, 18.19)
CIE-LCH	lch(42.84, 54.87, 19.36°)
OKLab	oklab(52.75% 0.1551 0.0447)
OKLCH	oklch(52.75% 0.161 16.1)
XYZ	xyz(21.6604, 13.0536, 7.8562)
Luminance	0.1305 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5374A #37B5A2

analogous

#B53789 #B5374A #B56337

triadic

#B5374A #4AB537 #374AB5

tetradic

#B5374A #89B537 #37B5A2 #6337B5

square

#B5374A #89B537 #37B5A2 #6337B5

split-complementary

#B5374A #37B563 #3789B5

monochromatic

#571A24 #862937 #B5374A #CD5C6D #DC8B97

Accessibility & contrast

On white

5.82

#B5374A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B5374A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5374A

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5374A	#FFFFFF	#000000	##FFFFFF
##B5374A	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58544A

Deuteranopia (green-blind)

#786F47

Tritanopia (blue-blind)

#C6193F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b5374a;
/* rgb */ color: rgb(181, 55, 74);
/* oklch */ color: oklch(52.7% 0.161 16.1);

Tailwind

colors: {
  custom: {
    50: '#d2767c',
    500: '#b5374a',
    950: '#000000',
  },
}

SCSS

$custom: #b5374a;
$custom-light: #d2767c;
$custom-dark: #000000;

JSON

{
  "hex": "#b5374a",
  "rgb": {
    "r": 181,
    "g": 55,
    "b": 74
  },
  "hsl": {
    "h": 350.952,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52746,
    "c": 0.16145,
    "h": 16.1
  },
  "luminance": 0.13051
}

Semantic roles & 50–950 ramp

primary

#B5374A

secondary

#82C6BC

accent

#DDC74B

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B5374A

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

Preview Lab → · Contrast checker → · Palette generator →