#B4378B#B4378B

#B4378B is a mid, vivid pink. Relative luminance 0.143; OKLCH L 54.7% C 0.183 H 343.6°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#B4378B
RGB	rgb(180, 55, 139)
HSL	hsl(320, 53%, 46%)
HSV	hsv(320, 69%, 71%)
CMYK	cmyk(0%, 69.4%, 22.8%, 29.4%)
CIE-LAB	lab(44.66, 58.24, -19.29)
CIE-LCH	lch(44.66, 61.35, 341.68°)
OKLab	oklab(54.71% 0.1753 -0.0515)
OKLCH	oklch(54.71% 0.183 343.6)
XYZ	xyz(24.8496, 14.3023, 25.8730)
Luminance	0.1430 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4378B #37B460

analogous

#9E37B4 #B4378B #B4374C

triadic

#B4378B #8BB437 #378BB4

tetradic

#B4378B #B49E37 #37B460 #374CB4

square

#B4378B #B49E37 #37B460 #374CB4

split-complementary

#B4378B #4CB437 #37B49E

monochromatic

#561A43 #852967 #B4378B #CD5BA8 #DB8AC1

Accessibility & contrast

On white

5.44

#B4378B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#B4378B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4378B

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4378B	#FFFFFF	#000000	##FFFFFF
##B4378B	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435C8D

Deuteranopia (green-blind)

#697188

Tritanopia (blue-blind)

#BF375C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #b4378b;
/* rgb */ color: rgb(180, 55, 139);
/* oklch */ color: oklch(54.7% 0.183 343.6);

Tailwind

colors: {
  custom: {
    50: '#ce78ad',
    500: '#b4378b',
    950: '#000000',
  },
}

SCSS

$custom: #b4378b;
$custom-light: #ce78ad;
$custom-dark: #000000;

JSON

{
  "hex": "#b4378b",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 139
  },
  "hsl": {
    "h": 319.68,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.54707,
    "c": 0.18267,
    "h": 343.6
  },
  "luminance": 0.143
}

Semantic roles & 50–950 ramp

primary

#B4378B

secondary

#81C698

accent

#DD7B4B

background

#FDF7FA

surface

#FAEEF4

border

#D3C9CE

text

#140A10

muted

#837C7F

Preview Lab

Preview with #B4378B

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

Preview Lab → · Contrast checker → · Palette generator →