#511B6A#511B6A

#511B6A is a dark, vivid purple. Relative luminance 0.036; OKLCH L 34.6% C 0.135 H 312.8°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#511B6A
RGB	rgb(81, 27, 106)
HSL	hsl(281, 59%, 26%)
HSV	hsv(281, 75%, 42%)
CMYK	cmyk(23.6%, 74.5%, 0%, 58.4%)
CIE-LAB	lab(22.21, 38.57, -35.03)
CIE-LCH	lch(22.21, 52.11, 317.75°)
OKLab	oklab(34.64% 0.0917 -0.0989)
OKLCH	oklch(34.64% 0.135 312.8)
XYZ	xyz(6.3863, 3.5740, 13.9863)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B6A #346A1B

analogous

#291B6A #511B6A #6A1B5B

triadic

#511B6A #6A511B #1B6A51

tetradic

#511B6A #6A291B #346A1B #1B5B6A

square

#511B6A #6A291B #346A1B #1B5B6A

split-complementary

#511B6A #5B6A1B #1B6A29

monochromatic

#130618 #2C0F39 #511B6A #76279B #9B34CB

Accessibility & contrast

On white

12.25

#511B6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#511B6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B6A

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B6A	#FFFFFF	#000000	##FFFFFF
##511B6A	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326C

Deuteranopia (green-blind)

#143668

Tritanopia (blue-blind)

#4E2C40

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #511b6a;
/* rgb */ color: rgb(81, 27, 106);
/* oklch */ color: oklch(34.6% 0.135 312.8);

Tailwind

colors: {
  custom: {
    50: '#855d95',
    500: '#511b6a',
    950: '#000000',
  },
}

SCSS

$custom: #511b6a;
$custom-light: #855d95;
$custom-dark: #000000;

JSON

{
  "hex": "#511b6a",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 106
  },
  "hsl": {
    "h": 281.013,
    "s": 59.398,
    "l": 26.078
  },
  "oklch": {
    "l": 0.34643,
    "c": 0.13485,
    "h": 312.8
  },
  "luminance": 0.03574
}

Semantic roles & 50–950 ramp

primary

#511B6A

secondary

#5F9F42

accent

#E34577

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B040D

muted

#7C797E

Preview Lab

Preview with #511B6A

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

Preview Lab → · Contrast checker → · Palette generator →