#511D87#511D87

#511D87 is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.3% C 0.164 H 300.8°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#511D87
RGB	rgb(81, 29, 135)
HSL	hsl(269, 65%, 32%)
HSV	hsv(269, 79%, 53%)
CMYK	cmyk(40%, 78.5%, 0%, 47.1%)
CIE-LAB	lab(24.88, 44.76, -49.19)
CIE-LCH	lch(24.88, 66.51, 312.30°)
OKLab	oklab(37.27% 0.0838 -0.1405)
OKLCH	oklch(37.27% 0.164 300.8)
XYZ	xyz(8.2048, 4.3773, 23.3296)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.79

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D87 #53871D

analogous

#1D1E87 #511D87 #861D87

triadic

#511D87 #87511D #1D8751

tetradic

#511D87 #871D1E #53871D #1D8786

square

#511D87 #871D1E #53871D #1D8786

split-complementary

#511D87 #87861D #1E871D

monochromatic

#150722 #331255 #511D87 #6F28B9 #8E47D7

Accessibility & contrast

On white

11.20

#511D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#511D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D87

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D87	#FFFFFF	#000000	##FFFFFF
##511D87	1.00	11.20	1.88	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8A

Deuteranopia (green-blind)

#003A85

Tritanopia (blue-blind)

#453951

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511d87;
/* rgb */ color: rgb(81, 29, 135);
/* oklch */ color: oklch(37.3% 0.164 300.8);

Tailwind

colors: {
  custom: {
    50: '#875fab',
    500: '#511d87',
    950: '#000000',
  },
}

SCSS

$custom: #511d87;
$custom-light: #875fab;
$custom-dark: #000000;

JSON

{
  "hex": "#511d87",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 135
  },
  "hsl": {
    "h": 269.434,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37269,
    "c": 0.16358,
    "h": 300.8
  },
  "luminance": 0.04377
}

Semantic roles & 50–950 ramp

primary

#511D87

secondary

#81B946

accent

#E84095

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511D87

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

Preview Lab → · Contrast checker → · Palette generator →