#511D90#511D90

#511D90 is a dark, vivid violet. Relative luminance 0.046; OKLCH L 38.1% C 0.173 H 297.9°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#511D90
RGB	rgb(81, 29, 144)
HSL	hsl(267, 66%, 34%)
HSV	hsv(267, 80%, 56%)
CMYK	cmyk(43.8%, 79.9%, 0%, 43.5%)
CIE-LAB	lab(25.69, 47.07, -53.48)
CIE-LCH	lch(25.69, 71.24, 311.35°)
OKLab	oklab(38.08% 0.0812 -0.1531)
OKLCH	oklch(38.08% 0.173 297.9)
XYZ	xyz(8.8654, 4.6415, 26.8090)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D90 #5C901D

analogous

#1D2390 #511D90 #8B1D90

triadic

#511D90 #90511D #1D9051

tetradic

#511D90 #901D23 #5C901D #1D908B

square

#511D90 #901D23 #5C901D #1D908B

split-complementary

#511D90 #908B1D #23901D

monochromatic

#18082A #34135D #511D90 #6E27C3 #8D4CDB

Accessibility & contrast

On white

10.89

#511D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#511D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D90

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D90	#FFFFFF	#000000	##FFFFFF
##511D90	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D93

Deuteranopia (green-blind)

#003C8E

Tritanopia (blue-blind)

#413D56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #511d90;
/* rgb */ color: rgb(81, 29, 144);
/* oklch */ color: oklch(38.1% 0.173 297.9);

Tailwind

colors: {
  custom: {
    50: '#8960b1',
    500: '#511d90',
    950: '#000000',
  },
}

SCSS

$custom: #511d90;
$custom-light: #8960b1;
$custom-dark: #000000;

JSON

{
  "hex": "#511d90",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 144
  },
  "hsl": {
    "h": 267.13,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38082,
    "c": 0.17329,
    "h": 297.9
  },
  "luminance": 0.04642
}

Semantic roles & 50–950 ramp

primary

#511D90

secondary

#8ABD4B

accent

#E93E9C

background

#F8F5FB

surface

#F0EAF6

border

#CBC6D0

text

#0C0511

muted

#7D7980

Preview Lab

Preview with #511D90

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

Preview Lab → · Contrast checker → · Palette generator →