#B540B4#B540B4

#B540B4 is a mid, highly saturated purple. Relative luminance 0.168; OKLCH L 57.8% C 0.202 H 328.1°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#B540B4
RGB	rgb(181, 64, 180)
HSL	hsl(301, 48%, 48%)
HSV	hsv(301, 65%, 71%)
CMYK	cmyk(0%, 64.6%, 0.6%, 29%)
CIE-LAB	lab(47.99, 61.27, -38.51)
CIE-LCH	lch(47.99, 72.37, 327.85°)
OKLab	oklab(57.78% 0.1712 -0.1063)
OKLCH	oklch(57.78% 0.202 328.1)
XYZ	xyz(29.1273, 16.7878, 44.8774)
Luminance	0.1679 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B540B4 #40B541

analogous

#7B40B5 #B540B4 #B54079

triadic

#B540B4 #B4B540 #40B4B5

tetradic

#B540B4 #B57B40 #40B541 #4079B5

square

#B540B4 #B57B40 #40B541 #4079B5

split-complementary

#B540B4 #79B540 #40B57B

monochromatic

#5B205A #883087 #B540B4 #CA68C9 #DA96D9

Accessibility & contrast

On white

4.82

#B540B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#B540B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B540B4

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B540B4	#FFFFFF	#000000	##FFFFFF
##B540B4	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3168B7

Deuteranopia (green-blind)

#5D77B1

Tritanopia (blue-blind)

#BB4F75

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #b540b4;
/* rgb */ color: rgb(181, 64, 180);
/* oklch */ color: oklch(57.8% 0.202 328.1);

Tailwind

colors: {
  custom: {
    50: '#ce7ecb',
    500: '#b540b4',
    950: '#000000',
  },
}

SCSS

$custom: #b540b4;
$custom-light: #ce7ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#b540b4",
  "rgb": {
    "r": 181,
    "g": 64,
    "b": 180
  },
  "hsl": {
    "h": 300.513,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57781,
    "c": 0.20153,
    "h": 328.1
  },
  "luminance": 0.16786
}

Semantic roles & 50–950 ramp

primary

#B540B4

secondary

#8BC58C

accent

#D75250

background

#FDF8FC

surface

#FAEFF8

border

#D3CAD1

text

#140A13

muted

#837C82

Preview Lab

Preview with #B540B4

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

Preview Lab → · Contrast checker → · Palette generator →