#B540B0#B540B0

#B540B0 is a mid, vivid purple. Relative luminance 0.166; OKLCH L 57.6% C 0.198 H 329.5°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#B540B0
RGB	rgb(181, 64, 176)
HSL	hsl(303, 48%, 48%)
HSV	hsv(303, 65%, 71%)
CMYK	cmyk(0%, 64.6%, 2.8%, 29%)
CIE-LAB	lab(47.79, 60.60, -36.49)
CIE-LCH	lch(47.79, 70.74, 328.95°)
OKLab	oklab(57.57% 0.1709 -0.1005)
OKLCH	oklch(57.57% 0.198 329.5)
XYZ	xyz(28.7257, 16.6272, 42.7623)
Luminance	0.1663 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B540B0 #40B545

analogous

#7F40B5 #B540B0 #B54075

triadic

#B540B0 #B0B540 #40B0B5

tetradic

#B540B0 #B57F40 #40B545 #4075B5

square

#B540B0 #B57F40 #40B545 #4075B5

split-complementary

#B540B0 #75B540 #40B57F

monochromatic

#5B2058 #883084 #B540B0 #CA68C6 #DA96D7

Accessibility & contrast

On white

4.86

#B540B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#B540B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B540B0

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B540B0	#FFFFFF	#000000	##FFFFFF
##B540B0	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3567B3

Deuteranopia (green-blind)

#5F77AD

Tritanopia (blue-blind)

#BB4E72

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #b540b0;
/* rgb */ color: rgb(181, 64, 176);
/* oklch */ color: oklch(57.6% 0.198 329.5);

Tailwind

colors: {
  custom: {
    50: '#ce7ec8',
    500: '#b540b0',
    950: '#000000',
  },
}

SCSS

$custom: #b540b0;
$custom-light: #ce7ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#b540b0",
  "rgb": {
    "r": 181,
    "g": 64,
    "b": 176
  },
  "hsl": {
    "h": 302.564,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57566,
    "c": 0.19828,
    "h": 329.5
  },
  "luminance": 0.16625
}

Semantic roles & 50–950 ramp

primary

#B540B0

secondary

#8BC58E

accent

#D75650

background

#FDF8FC

surface

#FAEFF8

border

#D3CAD1

text

#140A13

muted

#837C82

Preview Lab

Preview with #B540B0

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

Preview Lab → · Contrast checker → · Palette generator →