#511C5B#511C5B

#511C5B is a dark, moderate purple. Relative luminance 0.033; OKLCH L 33.7% C 0.118 H 321.0°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#511C5B
RGB	rgb(81, 28, 91)
HSL	hsl(290, 53%, 23%)
HSV	hsv(290, 69%, 36%)
CMYK	cmyk(11%, 69.2%, 0%, 64.3%)
CIE-LAB	lab(21.34, 34.72, -26.57)
CIE-LCH	lch(21.34, 43.72, 322.58°)
OKLab	oklab(33.69% 0.0914 -0.0741)
OKLCH	oklch(33.69% 0.118 321)
XYZ	xyz(5.6967, 3.3355, 10.2392)
Luminance	0.0333 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C5B #265B1C

analogous

#311C5B #511C5B #5B1C45

triadic

#511C5B #5B511C #1C5B51

tetradic

#511C5B #5B311C #265B1C #1C455B

square

#511C5B #5B311C #265B1C #1C455B

split-complementary

#511C5B #455B1C #1C5B31

monochromatic

#150717 #270E2C #511C5B #7B2A8A #A439B9

Accessibility & contrast

On white

12.60

#511C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#511C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C5B

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C5B	#FFFFFF	#000000	##FFFFFF
##511C5B	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B2F5D

Deuteranopia (green-blind)

#223559

Tritanopia (blue-blind)

#522638

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #511c5b;
/* rgb */ color: rgb(81, 28, 91);
/* oklch */ color: oklch(33.7% 0.118 321.0);

Tailwind

colors: {
  custom: {
    50: '#845d8a',
    500: '#511c5b',
    950: '#000000',
  },
}

SCSS

$custom: #511c5b;
$custom-light: #845d8a;
$custom-dark: #000000;

JSON

{
  "hex": "#511c5b",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 91
  },
  "hsl": {
    "h": 290.476,
    "s": 52.941,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33686,
    "c": 0.11765,
    "h": 321
  },
  "luminance": 0.03335
}

Semantic roles & 50–950 ramp

primary

#511C5B

secondary

#4F9042

accent

#DC4B62

background

#F8F5F8

surface

#EFE9F0

border

#CAC5CB

text

#0B040B

muted

#7C797C

Preview Lab

Preview with #511C5B

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

Preview Lab → · Contrast checker → · Palette generator →