#511B55#511B55

#511B55 is a dark, moderate purple. Relative luminance 0.032; OKLCH L 33.2% C 0.113 H 324.9°. Best body text is #FFFFFF at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#511B55
RGB	rgb(81, 27, 85)
HSL	hsl(296, 52%, 22%)
HSV	hsv(296, 68%, 33%)
CMYK	cmyk(4.7%, 68.2%, 0%, 66.7%)
CIE-LAB	lab(20.79, 33.94, -23.44)
CIE-LCH	lch(20.79, 41.25, 325.37°)
OKLab	oklab(33.16% 0.0925 -0.065)
OKLCH	oklch(33.16% 0.113 324.9)
XYZ	xyz(5.4248, 3.1894, 8.9224)
Luminance	0.0319 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B55 #1F551B

analogous

#341B55 #511B55 #551B3C

triadic

#511B55 #55511B #1B5551

tetradic

#511B55 #55341B #1F551B #1B3C55

square

#511B55 #55341B #1F551B #1B3C55

split-complementary

#511B55 #3C551B #1B5534

monochromatic

#160717 #250C27 #511B55 #7D2A83 #AA39B2

Accessibility & contrast

On white

12.82

#511B55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#511B55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B55

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B55	#FFFFFF	#000000	##FFFFFF
##511B55	1.00	12.82	1.64	12.82
#FFFFFF	12.82	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#112E57

Deuteranopia (green-blind)

#263453

Tritanopia (blue-blind)

#532335

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #511b55;
/* rgb */ color: rgb(81, 27, 85);
/* oklch */ color: oklch(33.2% 0.113 324.9);

Tailwind

colors: {
  custom: {
    50: '#845c85',
    500: '#511b55',
    950: '#000000',
  },
}

SCSS

$custom: #511b55;
$custom-light: #845c85;
$custom-dark: #000000;

JSON

{
  "hex": "#511b55",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 85
  },
  "hsl": {
    "h": 295.862,
    "s": 51.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.33164,
    "c": 0.11311,
    "h": 324.9
  },
  "luminance": 0.03189
}

Semantic roles & 50–950 ramp

primary

#511B55

secondary

#468B41

accent

#DB4D56

background

#F8F5F8

surface

#EFE9EF

border

#CAC5CA

text

#0B040B

muted

#7C797C

Preview Lab

Preview with #511B55

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

Preview Lab → · Contrast checker → · Palette generator →