#511D71#511D71

#511D71 is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.4% C 0.140 H 309.3°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#511D71
RGB	rgb(81, 29, 113)
HSL	hsl(277, 59%, 28%)
HSV	hsv(277, 74%, 44%)
CMYK	cmyk(28.3%, 74.3%, 0%, 55.7%)
CIE-LAB	lab(23.07, 39.30, -38.18)
CIE-LCH	lch(23.07, 54.79, 315.83°)
OKLab	oklab(35.42% 0.0885 -0.1081)
OKLCH	oklch(35.42% 0.14 309.3)
XYZ	xyz(6.8127, 3.8204, 15.9981)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D71 #3D711D

analogous

#271D71 #511D71 #711D67

triadic

#511D71 #71511D #1D7151

tetradic

#511D71 #71271D #3D711D #1D6771

square

#511D71 #71271D #3D711D #1D6771

split-complementary

#511D71 #67711D #1D7127

monochromatic

#110618 #2E1140 #511D71 #7429A2 #953CCD

Accessibility & contrast

On white

11.90

#511D71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#511D71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D71

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D71	#FFFFFF	#000000	##FFFFFF
##511D71	1.00	11.90	1.76	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003573

Deuteranopia (green-blind)

#0A386F

Tritanopia (blue-blind)

#4C3045

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #511d71;
/* rgb */ color: rgb(81, 29, 113);
/* oklch */ color: oklch(35.4% 0.140 309.3);

Tailwind

colors: {
  custom: {
    50: '#855e9a',
    500: '#511d71',
    950: '#000000',
  },
}

SCSS

$custom: #511d71;
$custom-light: #855e9a;
$custom-dark: #000000;

JSON

{
  "hex": "#511d71",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 113
  },
  "hsl": {
    "h": 277.143,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35422,
    "c": 0.1397,
    "h": 309.3
  },
  "luminance": 0.0382
}

Semantic roles & 50–950 ramp

primary

#511D71

secondary

#69A544

accent

#E24581

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B050E

muted

#7C797E

Preview Lab

Preview with #511D71

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

Preview Lab → · Contrast checker → · Palette generator →