#511664#511664

#511664 is a dark, vivid purple. Relative luminance 0.032; OKLCH L 33.6% C 0.135 H 316.5°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#511664
RGB	rgb(81, 22, 100)
HSL	hsl(285, 64%, 24%)
HSV	hsv(285, 78%, 39%)
CMYK	cmyk(19%, 78%, 0%, 60.8%)
CIE-LAB	lab(20.99, 39.41, -33.07)
CIE-LCH	lch(20.99, 51.45, 320.00°)
OKLab	oklab(33.64% 0.098 -0.0931)
OKLCH	oklch(33.64% 0.135 316.5)
XYZ	xyz(5.9801, 3.2435, 12.3652)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511664 #296416

analogous

#2A1664 #511664 #641650

triadic

#511664 #645116 #166451

tetradic

#511664 #642A16 #296416 #165064

square

#511664 #642A16 #296416 #165064

split-complementary

#511664 #506416 #16642A

monochromatic

#140619 #280B32 #511664 #7A2196 #A22CC8

Accessibility & contrast

On white

12.74

#511664 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#511664 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511664

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511664	#FFFFFF	#000000	##FFFFFF
##511664	1.00	12.74	1.65	12.74
#FFFFFF	12.74	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F66

Deuteranopia (green-blind)

#163462

Tritanopia (blue-blind)

#50263C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #511664;
/* rgb */ color: rgb(81, 22, 100);
/* oklch */ color: oklch(33.6% 0.135 316.5);

Tailwind

colors: {
  custom: {
    50: '#855a91',
    500: '#511664',
    950: '#000000',
  },
}

SCSS

$custom: #511664;
$custom-light: #855a91;
$custom-dark: #000000;

JSON

{
  "hex": "#511664",
  "rgb": {
    "r": 81,
    "g": 22,
    "b": 100
  },
  "hsl": {
    "h": 285.385,
    "s": 63.934,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33637,
    "c": 0.13514,
    "h": 316.5
  },
  "luminance": 0.03243
}

Semantic roles & 50–950 ramp

primary

#511664

secondary

#529B3B

accent

#E74169

background

#F8F5F8

surface

#F0E9F0

border

#CBC5CB

text

#0B040D

muted

#7C797D

Preview Lab

Preview with #511664

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

Preview Lab → · Contrast checker → · Palette generator →