#511D80#511D80

#511D80 is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.7% C 0.156 H 303.2°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#511D80
RGB	rgb(81, 29, 128)
HSL	hsl(272, 63%, 31%)
HSV	hsv(272, 77%, 50%)
CMYK	cmyk(36.7%, 77.3%, 0%, 49.8%)
CIE-LAB	lab(24.28, 43.00, -45.77)
CIE-LCH	lch(24.28, 62.80, 313.21°)
OKLab	oklab(36.66% 0.0855 -0.1305)
OKLCH	oklch(36.66% 0.156 303.2)
XYZ	xyz(7.7281, 4.1866, 20.8188)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.90

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D80 #4C801D

analogous

#1F1D80 #511D80 #801D7D

triadic

#511D80 #80511D #1D8051

tetradic

#511D80 #801F1D #4C801D #1D7D80

square

#511D80 #801F1D #4C801D #1D7D80

split-complementary

#511D80 #7D801D #1D801F

monochromatic

#12061C #31124E #511D80 #7128B2 #8F43D4

Accessibility & contrast

On white

11.43

#511D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#511D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D80

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D80	#FFFFFF	#000000	##FFFFFF
##511D80	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003983

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#47364D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #511d80;
/* rgb */ color: rgb(81, 29, 128);
/* oklch */ color: oklch(36.7% 0.156 303.2);

Tailwind

colors: {
  custom: {
    50: '#875fa6',
    500: '#511d80',
    950: '#000000',
  },
}

SCSS

$custom: #511d80;
$custom-light: #875fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#511d80",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 128
  },
  "hsl": {
    "h": 271.515,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.36658,
    "c": 0.15599,
    "h": 303.2
  },
  "luminance": 0.04187
}

Semantic roles & 50–950 ramp

primary

#511D80

secondary

#7AB345

accent

#E64290

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511D80

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

Preview Lab → · Contrast checker → · Palette generator →