#511C8B#511C8B

#511C8B is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.5% C 0.169 H 299.6°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#511C8B
RGB	rgb(81, 28, 139)
HSL	hsl(269, 66%, 33%)
HSV	hsv(269, 80%, 55%)
CMYK	cmyk(41.7%, 79.9%, 0%, 45.5%)
CIE-LAB	lab(25.09, 46.21, -51.35)
CIE-LCH	lch(25.09, 69.08, 311.98°)
OKLab	oklab(37.52% 0.0835 -0.1468)
OKLCH	oklch(37.52% 0.169 299.6)
XYZ	xyz(8.4676, 4.4438, 24.8327)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C8B #568B1C

analogous

#1C1E8B #511C8B #891C8B

triadic

#511C8B #8B511C #1C8B51

tetradic

#511C8B #8B1C1E #568B1C #1C8B89

square

#511C8B #8B1C1E #568B1C #1C8B89

split-complementary

#511C8B #8B891C #1E8B1C

monochromatic

#160725 #331258 #511C8B #6F26BE #8D47DA

Accessibility & contrast

On white

11.12

#511C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#511C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C8B

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C8B	#FFFFFF	#000000	##FFFFFF
##511C8B	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8E

Deuteranopia (green-blind)

#003B89

Tritanopia (blue-blind)

#433A53

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511c8b;
/* rgb */ color: rgb(81, 28, 139);
/* oklch */ color: oklch(37.5% 0.169 299.6);

Tailwind

colors: {
  custom: {
    50: '#885fae',
    500: '#511c8b',
    950: '#000000',
  },
}

SCSS

$custom: #511c8b;
$custom-light: #885fae;
$custom-dark: #000000;

JSON

{
  "hex": "#511c8b",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 139
  },
  "hsl": {
    "h": 268.649,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37523,
    "c": 0.16894,
    "h": 299.6
  },
  "luminance": 0.04444
}

Semantic roles & 50–950 ramp

primary

#511C8B

secondary

#84BC47

accent

#E93E98

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511C8B

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

Preview Lab → · Contrast checker → · Palette generator →