#511B5C#511B5C

#511B5C is a dark, vivid purple. Relative luminance 0.033; OKLCH L 33.6% C 0.120 H 320.4°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#511B5C
RGB	rgb(81, 27, 92)
HSL	hsl(290, 55%, 23%)
HSV	hsv(290, 71%, 36%)
CMYK	cmyk(12%, 70.7%, 0%, 63.9%)
CIE-LAB	lab(21.23, 35.43, -27.41)
CIE-LCH	lch(21.23, 44.79, 322.27°)
OKLab	oklab(33.63% 0.0927 -0.0766)
OKLCH	oklch(33.63% 0.12 320.4)
XYZ	xyz(5.7168, 3.3062, 10.4602)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B5C #265C1B

analogous

#301B5C #511B5C #5C1B46

triadic

#511B5C #5C511B #1B5C51

tetradic

#511B5C #5C301B #265C1B #1B465C

square

#511B5C #5C301B #265C1B #1B465C

split-complementary

#511B5C #465C1B #1B5C30

monochromatic

#150718 #270D2D #511B5C #7B298B #A437BB

Accessibility & contrast

On white

12.64

#511B5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#511B5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B5C

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B5C	#FFFFFF	#000000	##FFFFFF
##511B5C	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072F5E

Deuteranopia (green-blind)

#21355A

Tritanopia (blue-blind)

#522639

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #511b5c;
/* rgb */ color: rgb(81, 27, 92);
/* oklch */ color: oklch(33.6% 0.120 320.4);

Tailwind

colors: {
  custom: {
    50: '#845c8a',
    500: '#511b5c',
    950: '#000000',
  },
}

SCSS

$custom: #511b5c;
$custom-light: #845c8a;
$custom-dark: #000000;

JSON

{
  "hex": "#511b5c",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 92
  },
  "hsl": {
    "h": 289.846,
    "s": 54.622,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33628,
    "c": 0.1202,
    "h": 320.4
  },
  "luminance": 0.03306
}

Semantic roles & 50–950 ramp

primary

#511B5C

secondary

#4F9241

accent

#DE4A63

background

#F8F5F8

surface

#EFE9F0

border

#CAC5CB

text

#0B040C

muted

#7C797D

Preview Lab

Preview with #511B5C

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

Preview Lab → · Contrast checker → · Palette generator →