#511B5E#511B5E

#511B5E is a dark, vivid purple. Relative luminance 0.033; OKLCH L 33.8% C 0.122 H 319.3°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#511B5E
RGB	rgb(81, 27, 94)
HSL	hsl(288, 55%, 24%)
HSV	hsv(288, 71%, 37%)
CMYK	cmyk(13.8%, 71.3%, 0%, 63.1%)
CIE-LAB	lab(21.36, 35.86, -28.52)
CIE-LCH	lch(21.36, 45.82, 321.50°)
OKLab	oklab(33.77% 0.0926 -0.0798)
OKLCH	oklch(33.77% 0.122 319.3)
XYZ	xyz(5.8054, 3.3416, 10.9267)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B5E #285E1B

analogous

#2F1B5E #511B5E #5E1B49

triadic

#511B5E #5E511B #1B5E51

tetradic

#511B5E #5E2F1B #285E1B #1B495E

square

#511B5E #5E2F1B #285E1B #1B495E

split-complementary

#511B5E #495E1B #1B5E2F

monochromatic

#140718 #280D2E #511B5E #7A298E #A336BD

Accessibility & contrast

On white

12.59

#511B5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#511B5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B5E

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B5E	#FFFFFF	#000000	##FFFFFF
##511B5E	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#043060

Deuteranopia (green-blind)

#20355C

Tritanopia (blue-blind)

#51273A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #511b5e;
/* rgb */ color: rgb(81, 27, 94);
/* oklch */ color: oklch(33.8% 0.122 319.3);

Tailwind

colors: {
  custom: {
    50: '#845c8c',
    500: '#511b5e',
    950: '#000000',
  },
}

SCSS

$custom: #511b5e;
$custom-light: #845c8c;
$custom-dark: #000000;

JSON

{
  "hex": "#511b5e",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 94
  },
  "hsl": {
    "h": 288.358,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33766,
    "c": 0.12227,
    "h": 319.3
  },
  "luminance": 0.03341
}

Semantic roles & 50–950 ramp

primary

#511B5E

secondary

#519441

accent

#DF4966

background

#F8F5F8

surface

#EFE9F0

border

#CAC5CB

text

#0B040C

muted

#7C797D

Preview Lab

Preview with #511B5E

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

Preview Lab → · Contrast checker → · Palette generator →