#511D6B#511D6B

#511D6B is a dark, vivid purple. Relative luminance 0.037; OKLCH L 35.0% C 0.133 H 312.1°. Best body text is #FFFFFF at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#511D6B
RGB	rgb(81, 29, 107)
HSL	hsl(280, 57%, 27%)
HSV	hsv(280, 73%, 42%)
CMYK	cmyk(24.3%, 72.9%, 0%, 58%)
CIE-LAB	lab(22.62, 37.87, -35.02)
CIE-LCH	lch(22.62, 51.58, 317.23°)
OKLab	oklab(34.96% 0.0892 -0.0989)
OKLCH	oklch(34.96% 0.133 312.1)
XYZ	xyz(6.4861, 3.6898, 14.2776)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D6B #376B1D

analogous

#2A1D6B #511D6B #6B1D5E

triadic

#511D6B #6B511D #1D6B51

tetradic

#511D6B #6B2A1D #376B1D #1D5E6B

square

#511D6B #6B2A1D #376B1D #1D5E6B

split-complementary

#511D6B #5E6B1D #1D6B2A

monochromatic

#120718 #2D103B #511D6B #752A9B #9939C9

Accessibility & contrast

On white

12.08

#511D6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#511D6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D6B

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D6B	#FFFFFF	#000000	##FFFFFF
##511D6B	1.00	12.08	1.74	12.08
#FFFFFF	12.08	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336D

Deuteranopia (green-blind)

#153769

Tritanopia (blue-blind)

#4E2D41

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #511d6b;
/* rgb */ color: rgb(81, 29, 107);
/* oklch */ color: oklch(35.0% 0.133 312.1);

Tailwind

colors: {
  custom: {
    50: '#855e96',
    500: '#511d6b',
    950: '#000000',
  },
}

SCSS

$custom: #511d6b;
$custom-light: #855e96;
$custom-dark: #000000;

JSON

{
  "hex": "#511d6b",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 107
  },
  "hsl": {
    "h": 280,
    "s": 57.353,
    "l": 26.667
  },
  "oklch": {
    "l": 0.34957,
    "c": 0.1332,
    "h": 312.1
  },
  "luminance": 0.0369
}

Semantic roles & 50–950 ramp

primary

#511D6B

secondary

#63A044

accent

#E1477A

background

#F8F5F9

surface

#EFE9F2

border

#CAC5CC

text

#0B050D

muted

#7C797E

Preview Lab

Preview with #511D6B

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

Preview Lab → · Contrast checker → · Palette generator →