#511A8D#511A8D

#511A8D is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.5% C 0.173 H 299.2°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#511A8D
RGB	rgb(81, 26, 141)
HSL	hsl(269, 69%, 33%)
HSV	hsv(269, 82%, 55%)
CMYK	cmyk(42.6%, 81.6%, 0%, 44.7%)
CIE-LAB	lab(24.99, 47.54, -52.76)
CIE-LCH	lch(24.99, 71.02, 312.02°)
OKLab	oklab(37.51% 0.0845 -0.151)
OKLCH	oklch(37.51% 0.173 299.2)
XYZ	xyz(8.5692, 4.4111, 25.5941)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A8D #568D1A

analogous

#1A1C8D #511A8D #8B1A8D

triadic

#511A8D #8D511A #1A8D51

tetradic

#511A8D #8D1A1C #568D1A #1A8D8B

square

#511A8D #8D1A1C #568D1A #1A8D8B

split-complementary

#511A8D #8D8B1A #1C8D1A

monochromatic

#160726 #331059 #511A8D #6F24C1 #8D45DD

Accessibility & contrast

On white

11.16

#511A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#511A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A8D

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A8D	#FFFFFF	#000000	##FFFFFF
##511A8D	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B90

Deuteranopia (green-blind)

#003A8B

Tritanopia (blue-blind)

#423A54

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511a8d;
/* rgb */ color: rgb(81, 26, 141);
/* oklch */ color: oklch(37.5% 0.173 299.2);

Tailwind

colors: {
  custom: {
    50: '#885eaf',
    500: '#511a8d',
    950: '#000000',
  },
}

SCSS

$custom: #511a8d;
$custom-light: #885eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#511a8d",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 141
  },
  "hsl": {
    "h": 268.696,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37509,
    "c": 0.17303,
    "h": 299.2
  },
  "luminance": 0.04411
}

Semantic roles & 50–950 ramp

primary

#511A8D

secondary

#84BE45

accent

#EC3C98

background

#F8F5FA

surface

#F0E9F5

border

#CBC5CF

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511A8D

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

Preview Lab → · Contrast checker → · Palette generator →