#511C6B#511C6B

#511C6B is a dark, vivid purple. Relative luminance 0.036; OKLCH L 34.8% C 0.135 H 312.2°. Best body text is #FFFFFF at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#511C6B
RGB	rgb(81, 28, 107)
HSL	hsl(280, 59%, 26%)
HSV	hsv(280, 74%, 42%)
CMYK	cmyk(24.3%, 73.8%, 0%, 58%)
CIE-LAB	lab(22.45, 38.34, -35.30)
CIE-LCH	lch(22.45, 52.11, 317.37°)
OKLab	oklab(34.84% 0.0904 -0.0997)
OKLCH	oklch(34.84% 0.135 312.2)
XYZ	xyz(6.4620, 3.6416, 14.2696)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C6B #366B1C

analogous

#2A1C6B #511C6B #6B1C5E

triadic

#511C6B #6B511C #1C6B51

tetradic

#511C6B #6B2A1C #366B1C #1C5E6B

square

#511C6B #6B2A1C #366B1C #1C5E6B

split-complementary

#511C6B #5E6B1C #1C6B2A

monochromatic

#120618 #2C0F3A #511C6B #76299C #9A37CB

Accessibility & contrast

On white

12.15

#511C6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#511C6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C6B

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C6B	#FFFFFF	#000000	##FFFFFF
##511C6B	1.00	12.15	1.73	12.15
#FFFFFF	12.15	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336D

Deuteranopia (green-blind)

#133769

Tritanopia (blue-blind)

#4E2D41

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #511c6b;
/* rgb */ color: rgb(81, 28, 107);
/* oklch */ color: oklch(34.8% 0.135 312.2);

Tailwind

colors: {
  custom: {
    50: '#855d96',
    500: '#511c6b',
    950: '#000000',
  },
}

SCSS

$custom: #511c6b;
$custom-light: #855d96;
$custom-dark: #000000;

JSON

{
  "hex": "#511c6b",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 107
  },
  "hsl": {
    "h": 280.253,
    "s": 58.519,
    "l": 26.471
  },
  "oklch": {
    "l": 0.34837,
    "c": 0.13457,
    "h": 312.2
  },
  "luminance": 0.03641
}

Semantic roles & 50–950 ramp

primary

#511C6B

secondary

#62A043

accent

#E24679

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B040D

muted

#7C797E

Preview Lab

Preview with #511C6B

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

Preview Lab → · Contrast checker → · Palette generator →