#511F78#511F78

#511F78 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.2% C 0.145 H 306.0°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#511F78
RGB	rgb(81, 31, 120)
HSL	hsl(274, 59%, 30%)
HSV	hsv(274, 74%, 47%)
CMYK	cmyk(32.5%, 74.2%, 0%, 52.9%)
CIE-LAB	lab(23.95, 40.06, -41.23)
CIE-LCH	lch(23.95, 57.49, 314.18°)
OKLab	oklab(36.22% 0.0851 -0.1171)
OKLCH	oklch(36.22% 0.145 306)
XYZ	xyz(7.2727, 4.0854, 18.1711)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F78 #46781F

analogous

#251F78 #511F78 #781F73

triadic

#511F78 #78511F #1F7851

tetradic

#511F78 #78251F #46781F #1F7378

square

#511F78 #78251F #46781F #1F7378

split-complementary

#511F78 #73781F #1F7825

monochromatic

#100618 #301247 #511F78 #722CA9 #9143CE

Accessibility & contrast

On white

11.56

#511F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#511F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F78

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F78	#FFFFFF	#000000	##FFFFFF
##511F78	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377B

Deuteranopia (green-blind)

#003976

Tritanopia (blue-blind)

#4A3449

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511f78;
/* rgb */ color: rgb(81, 31, 120);
/* oklch */ color: oklch(36.2% 0.145 306.0);

Tailwind

colors: {
  custom: {
    50: '#865fa0',
    500: '#511f78',
    950: '#000000',
  },
}

SCSS

$custom: #511f78;
$custom-light: #865fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#511f78",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 120
  },
  "hsl": {
    "h": 273.708,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36222,
    "c": 0.14477,
    "h": 306
  },
  "luminance": 0.04085
}

Semantic roles & 50–950 ramp

primary

#511F78

secondary

#73AB47

accent

#E2468A

background

#F8F5F9

surface

#F0EAF2

border

#CBC6CC

text

#0B050F

muted

#7C797E

Preview Lab

Preview with #511F78

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

Preview Lab → · Contrast checker → · Palette generator →