#511B68#511B68

#511B68 is a dark, vivid purple. Relative luminance 0.035; OKLCH L 34.5% C 0.133 H 313.8°. Best body text is #FFFFFF at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#511B68
RGB	rgb(81, 27, 104)
HSL	hsl(282, 59%, 26%)
HSV	hsv(282, 74%, 41%)
CMYK	cmyk(22.1%, 74%, 0%, 59.2%)
CIE-LAB	lab(22.06, 38.11, -33.97)
CIE-LCH	lch(22.06, 51.05, 318.29°)
OKLab	oklab(34.49% 0.0919 -0.0958)
OKLCH	oklch(34.49% 0.133 313.8)
XYZ	xyz(6.2835, 3.5329, 13.4449)
Luminance	0.0353 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B68 #32681B

analogous

#2A1B68 #511B68 #681B58

triadic

#511B68 #68511B #1B6851

tetradic

#511B68 #682A1B #32681B #1B5868

square

#511B68 #682A1B #32681B #1B5868

split-complementary

#511B68 #58681B #1B682A

monochromatic

#130618 #2B0E37 #511B68 #772899 #9D34C9

Accessibility & contrast

On white

12.31

#511B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#511B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B68

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B68	#FFFFFF	#000000	##FFFFFF
##511B68	1.00	12.31	1.71	12.31
#FFFFFF	12.31	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326A

Deuteranopia (green-blind)

#163666

Tritanopia (blue-blind)

#4F2B3F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #511b68;
/* rgb */ color: rgb(81, 27, 104);
/* oklch */ color: oklch(34.5% 0.133 313.8);

Tailwind

colors: {
  custom: {
    50: '#855d94',
    500: '#511b68',
    950: '#000000',
  },
}

SCSS

$custom: #511b68;
$custom-light: #855d94;
$custom-dark: #000000;

JSON

{
  "hex": "#511b68",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 104
  },
  "hsl": {
    "h": 282.078,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.34491,
    "c": 0.13274,
    "h": 313.8
  },
  "luminance": 0.03533
}

Semantic roles & 50–950 ramp

primary

#511B68

secondary

#5D9D42

accent

#E24674

background

#F8F5F9

surface

#EFE9F1

border

#CAC5CB

text

#0B040D

muted

#7C797E

Preview Lab

Preview with #511B68

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

Preview Lab → · Contrast checker → · Palette generator →