#511B6C#511B6C

#511B6C is a dark, vivid purple. Relative luminance 0.036; OKLCH L 34.8% C 0.137 H 311.9°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#511B6C
RGB	rgb(81, 27, 108)
HSL	hsl(280, 60%, 26%)
HSV	hsv(280, 75%, 42%)
CMYK	cmyk(25%, 75%, 0%, 57.6%)
CIE-LAB	lab(22.36, 39.04, -36.09)
CIE-LCH	lch(22.36, 53.17, 317.25°)
OKLab	oklab(34.8% 0.0914 -0.102)
OKLCH	oklch(34.8% 0.137 311.9)
XYZ	xyz(6.4915, 3.6161, 14.5405)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B6C #366C1B

analogous

#291B6C #511B6C #6C1B5F

triadic

#511B6C #6C511B #1B6C51

tetradic

#511B6C #6C291B #366C1B #1B5F6C

square

#511B6C #6C291B #366C1B #1B5F6C

split-complementary

#511B6C #5F6C1B #1B6C29

monochromatic

#120618 #2C0F3B #511B6C #76279D #9A35CC

Accessibility & contrast

On white

12.19

#511B6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#511B6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B6C

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B6C	#FFFFFF	#000000	##FFFFFF
##511B6C	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336E

Deuteranopia (green-blind)

#11366A

Tritanopia (blue-blind)

#4E2D41

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #511b6c;
/* rgb */ color: rgb(81, 27, 108);
/* oklch */ color: oklch(34.8% 0.137 311.9);

Tailwind

colors: {
  custom: {
    50: '#855d97',
    500: '#511b6c',
    950: '#000000',
  },
}

SCSS

$custom: #511b6c;
$custom-light: #855d97;
$custom-dark: #000000;

JSON

{
  "hex": "#511b6c",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 108
  },
  "hsl": {
    "h": 280,
    "s": 60,
    "l": 26.471
  },
  "oklch": {
    "l": 0.34796,
    "c": 0.13697,
    "h": 311.9
  },
  "luminance": 0.03616
}

Semantic roles & 50–950 ramp

primary

#511B6C

secondary

#62A142

accent

#E34579

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B040D

muted

#7C797E

Preview Lab

Preview with #511B6C

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

Preview Lab → · Contrast checker → · Palette generator →