#511B86#511B86

#511B86 is a dark, vivid violet. Relative luminance 0.043; OKLCH L 37.0% C 0.165 H 301.4°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#511B86
RGB	rgb(81, 27, 134)
HSL	hsl(270, 66%, 32%)
HSV	hsv(270, 80%, 53%)
CMYK	cmyk(39.6%, 79.9%, 0%, 47.5%)
CIE-LAB	lab(24.50, 45.37, -49.20)
CIE-LCH	lch(24.50, 66.92, 312.68°)
OKLab	oklab(36.97% 0.0858 -0.1405)
OKLCH	oklch(36.97% 0.165 301.4)
XYZ	xyz(8.0873, 4.2544, 22.9447)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.44

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B86 #50861B

analogous

#1B1B86 #511B86 #861B86

triadic

#511B86 #86511B #1B8651

tetradic

#511B86 #861B1B #50861B #1B8686

square

#511B86 #861B1B #50861B #1B8686

split-complementary

#511B86 #86861B #1B861B

monochromatic

#130620 #321153 #511B86 #7025B9 #8E42D9

Accessibility & contrast

On white

11.35

#511B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#511B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B86

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B86	#FFFFFF	#000000	##FFFFFF
##511B86	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A89

Deuteranopia (green-blind)

#003A84

Tritanopia (blue-blind)

#453850

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #511b86;
/* rgb */ color: rgb(81, 27, 134);
/* oklch */ color: oklch(37.0% 0.165 301.4);

Tailwind

colors: {
  custom: {
    50: '#875eaa',
    500: '#511b86',
    950: '#000000',
  },
}

SCSS

$custom: #511b86;
$custom-light: #875eaa;
$custom-dark: #000000;

JSON

{
  "hex": "#511b86",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 134
  },
  "hsl": {
    "h": 270.28,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.36971,
    "c": 0.16463,
    "h": 301.4
  },
  "luminance": 0.04254
}

Semantic roles & 50–950 ramp

primary

#511B86

secondary

#7EB944

accent

#E93E93

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511B86

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

Preview Lab → · Contrast checker → · Palette generator →