#511B8C#511B8C

#511B8C is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.5% C 0.171 H 299.4°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#511B8C
RGB	rgb(81, 27, 140)
HSL	hsl(269, 68%, 33%)
HSV	hsv(269, 81%, 55%)
CMYK	cmyk(42.1%, 80.7%, 0%, 45.1%)
CIE-LAB	lab(25.03, 46.88, -52.06)
CIE-LCH	lch(25.03, 70.06, 312.00°)
OKLab	oklab(37.51% 0.0841 -0.1489)
OKLCH	oklch(37.51% 0.171 299.4)
XYZ	xyz(8.5177, 4.4265, 25.2115)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B8C #568C1B

analogous

#1B1D8C #511B8C #8A1B8C

triadic

#511B8C #8C511B #1B8C51

tetradic

#511B8C #8C1B1D #568C1B #1B8C8A

square

#511B8C #8C1B1D #568C1B #1B8C8A

split-complementary

#511B8C #8C8A1B #1D8C1B

monochromatic

#160725 #331159 #511B8C #6F25BF #8D46DB

Accessibility & contrast

On white

11.14

#511B8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#511B8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B8C

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B8C	#FFFFFF	#000000	##FFFFFF
##511B8C	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8F

Deuteranopia (green-blind)

#003A8A

Tritanopia (blue-blind)

#433A54

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511b8c;
/* rgb */ color: rgb(81, 27, 140);
/* oklch */ color: oklch(37.5% 0.171 299.4);

Tailwind

colors: {
  custom: {
    50: '#885faf',
    500: '#511b8c',
    950: '#000000',
  },
}

SCSS

$custom: #511b8c;
$custom-light: #885faf;
$custom-dark: #000000;

JSON

{
  "hex": "#511b8c",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 140
  },
  "hsl": {
    "h": 268.673,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37514,
    "c": 0.171,
    "h": 299.4
  },
  "luminance": 0.04427
}

Semantic roles & 50–950 ramp

primary

#511B8C

secondary

#84BD46

accent

#EB3D98

background

#F8F5FA

surface

#F0E9F5

border

#CBC5CF

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511B8C

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

Preview Lab → · Contrast checker → · Palette generator →