#511666#511666

#511666 is a dark, vivid purple. Relative luminance 0.033; OKLCH L 33.8% C 0.137 H 315.4°. Best body text is #FFFFFF at 12.68:1 contrast (WCAG AA passes).

Color values

HEX	#511666
RGB	rgb(81, 22, 102)
HSL	hsl(284, 65%, 24%)
HSV	hsv(284, 78%, 40%)
CMYK	cmyk(20.6%, 78.4%, 0%, 60%)
CIE-LAB	lab(21.14, 39.85, -34.14)
CIE-LCH	lch(21.14, 52.48, 319.41°)
OKLab	oklab(33.79% 0.0977 -0.0962)
OKLCH	oklch(33.79% 0.137 315.4)
XYZ	xyz(6.0781, 3.2827, 12.8812)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511666 #2B6616

analogous

#291666 #511666 #661653

triadic

#511666 #665116 #166651

tetradic

#511666 #662916 #2B6616 #165366

square

#511666 #662916 #2B6616 #165366

split-complementary

#511666 #536616 #166629

monochromatic

#140519 #290B34 #511666 #792198 #A12CCB

Accessibility & contrast

On white

12.68

#511666 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#511666 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511666

12.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511666	#FFFFFF	#000000	##FFFFFF
##511666	1.00	12.68	1.66	12.68
#FFFFFF	12.68	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F68

Deuteranopia (green-blind)

#143464

Tritanopia (blue-blind)

#4F273D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #511666;
/* rgb */ color: rgb(81, 22, 102);
/* oklch */ color: oklch(33.8% 0.137 315.4);

Tailwind

colors: {
  custom: {
    50: '#855a92',
    500: '#511666',
    950: '#000000',
  },
}

SCSS

$custom: #511666;
$custom-light: #855a92;
$custom-dark: #000000;

JSON

{
  "hex": "#511666",
  "rgb": {
    "r": 81,
    "g": 22,
    "b": 102
  },
  "hsl": {
    "h": 284.25,
    "s": 64.516,
    "l": 24.314
  },
  "oklch": {
    "l": 0.33789,
    "c": 0.13713,
    "h": 315.4
  },
  "luminance": 0.03282
}

Semantic roles & 50–950 ramp

primary

#511666

secondary

#559D3B

accent

#E8406C

background

#F8F5F9

surface

#F0E9F1

border

#CBC5CB

text

#0B040D

muted

#7C797E

Preview Lab

Preview with #511666

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

Preview Lab → · Contrast checker → · Palette generator →