#511D8C#511D8C

#511D8C is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.7% C 0.169 H 299.2°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#511D8C
RGB	rgb(81, 29, 140)
HSL	hsl(268, 66%, 33%)
HSV	hsv(268, 79%, 55%)
CMYK	cmyk(42.1%, 79.3%, 0%, 45.1%)
CIE-LAB	lab(25.33, 46.04, -51.59)
CIE-LCH	lch(25.33, 69.14, 311.75°)
OKLab	oklab(37.72% 0.0824 -0.1475)
OKLCH	oklch(37.72% 0.169 299.2)
XYZ	xyz(8.5651, 4.5214, 25.2273)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D8C #588C1D

analogous

#1D218C #511D8C #881D8C

triadic

#511D8C #8C511D #1D8C51

tetradic

#511D8C #8C1D21 #588C1D #1D8C88

square

#511D8C #8C1D21 #588C1D #1D8C88

split-complementary

#511D8C #8C881D #218C1D

monochromatic

#160827 #341259 #511D8C #6E28BF #8D4AD9

Accessibility & contrast

On white

11.03

#511D8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#511D8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D8C

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D8C	#FFFFFF	#000000	##FFFFFF
##511D8C	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8F

Deuteranopia (green-blind)

#003B8A

Tritanopia (blue-blind)

#433B54

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #511d8c;
/* rgb */ color: rgb(81, 29, 140);
/* oklch */ color: oklch(37.7% 0.169 299.2);

Tailwind

colors: {
  custom: {
    50: '#885faf',
    500: '#511d8c',
    950: '#000000',
  },
}

SCSS

$custom: #511d8c;
$custom-light: #885faf;
$custom-dark: #000000;

JSON

{
  "hex": "#511d8c",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 140
  },
  "hsl": {
    "h": 268.108,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.37717,
    "c": 0.16898,
    "h": 299.2
  },
  "luminance": 0.04522
}

Semantic roles & 50–950 ramp

primary

#511D8C

secondary

#86BC49

accent

#E93F99

background

#F8F5FA

surface

#F0EAF5

border

#CBC6CF

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511D8C

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

Preview Lab → · Contrast checker → · Palette generator →