#511D9E#511D9E

#511D9E is a dark, vivid violet. Relative luminance 0.051; OKLCH L 39.4% C 0.188 H 294.0°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#511D9E
RGB	rgb(81, 29, 158)
HSL	hsl(264, 69%, 37%)
HSV	hsv(264, 82%, 62%)
CMYK	cmyk(48.7%, 81.6%, 0%, 38%)
CIE-LAB	lab(27.01, 50.69, -59.92)
CIE-LCH	lch(27.01, 78.48, 310.23°)
OKLab	oklab(39.4% 0.0767 -0.172)
OKLCH	oklch(39.4% 0.188 294)
XYZ	xyz(10.0026, 5.0964, 32.7978)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D9E #6A9E1D

analogous

#1D2A9E #511D9E #921D9E

triadic

#511D9E #9E511D #1D9E51

tetradic

#511D9E #9E1D2A #6A9E1D #1D9E92

square

#511D9E #9E1D2A #6A9E1D #1D9E92

split-complementary

#511D9E #9E921D #2A9E1D

monochromatic

#1C0A37 #36146A #511D9E #6C26D2 #8D56E0

Accessibility & contrast

On white

10.40

#511D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#511D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D9E

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D9E	#FFFFFF	#000000	##FFFFFF
##511D9E	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A1

Deuteranopia (green-blind)

#003E9C

Tritanopia (blue-blind)

#39435E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #511d9e;
/* rgb */ color: rgb(81, 29, 158);
/* oklch */ color: oklch(39.4% 0.188 294.0);

Tailwind

colors: {
  custom: {
    50: '#8a61bc',
    500: '#511d9e',
    950: '#000000',
  },
}

SCSS

$custom: #511d9e;
$custom-light: #8a61bc;
$custom-dark: #000000;

JSON

{
  "hex": "#511d9e",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 158
  },
  "hsl": {
    "h": 264.186,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39401,
    "c": 0.1883,
    "h": 294
  },
  "luminance": 0.05097
}

Semantic roles & 50–950 ramp

primary

#511D9E

secondary

#96C354

accent

#EC3CA5

background

#F9F5FB

surface

#F1EAF6

border

#CBC6D0

text

#0D0512

muted

#7E7981

Preview Lab

Preview with #511D9E

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

Preview Lab → · Contrast checker → · Palette generator →