#511A7D#511A7D

#511A7D is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.1% C 0.156 H 304.8°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#511A7D
RGB	rgb(81, 26, 125)
HSL	hsl(273, 66%, 30%)
HSV	hsv(273, 79%, 49%)
CMYK	cmyk(35.2%, 79.2%, 0%, 51%)
CIE-LAB	lab(23.57, 43.56, -45.03)
CIE-LCH	lch(23.57, 62.65, 314.05°)
OKLab	oklab(36.08% 0.0891 -0.1283)
OKLCH	oklch(36.08% 0.156 304.8)
XYZ	xyz(7.4636, 3.9688, 19.7709)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.59

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A7D #467D1A

analogous

#1F1A7D #511A7D #7D1A78

triadic

#511A7D #7D511A #1A7D51

tetradic

#511A7D #7D1F1A #467D1A #1A787D

square

#511A7D #7D1F1A #467D1A #1A787D

split-complementary

#511A7D #787D1A #1A7D1F

monochromatic

#100519 #300F4A #511A7D #7225B0 #913BD6

Accessibility & contrast

On white

11.71

#511A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#511A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A7D

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A7D	#FFFFFF	#000000	##FFFFFF
##511A7D	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003780

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#49334B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #511a7d;
/* rgb */ color: rgb(81, 26, 125);
/* oklch */ color: oklch(36.1% 0.156 304.8);

Tailwind

colors: {
  custom: {
    50: '#875da3',
    500: '#511a7d',
    950: '#000000',
  },
}

SCSS

$custom: #511a7d;
$custom-light: #875da3;
$custom-dark: #000000;

JSON

{
  "hex": "#511a7d",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 125
  },
  "hsl": {
    "h": 273.333,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36079,
    "c": 0.15617,
    "h": 304.8
  },
  "luminance": 0.03969
}

Semantic roles & 50–950 ramp

primary

#511A7D

secondary

#73B142

accent

#E93F8A

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511A7D

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

Preview Lab → · Contrast checker → · Palette generator →