#511A83#511A83

#511A83 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.6% C 0.163 H 302.6°. Best body text is #FFFFFF at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#511A83
RGB	rgb(81, 26, 131)
HSL	hsl(271, 67%, 31%)
HSV	hsv(271, 80%, 51%)
CMYK	cmyk(38.2%, 80.2%, 0%, 48.6%)
CIE-LAB	lab(24.09, 45.04, -47.98)
CIE-LCH	lch(24.09, 65.81, 313.19°)
OKLab	oklab(36.6% 0.0875 -0.1369)
OKLCH	oklch(36.6% 0.163 302.6)
XYZ	xyz(7.8585, 4.1268, 21.8509)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.29

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A83 #4C831A

analogous

#1D1A83 #511A83 #831A80

triadic

#511A83 #83511A #1A8351

tetradic

#511A83 #831D1A #4C831A #1A8083

square

#511A83 #831D1A #4C831A #1A8083

split-complementary

#511A83 #80831A #1A831D

monochromatic

#12061D #311050 #511A83 #7124B6 #8F3FD9

Accessibility & contrast

On white

11.50

#511A83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#511A83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A83

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A83	#FFFFFF	#000000	##FFFFFF
##511A83	1.00	11.50	1.83	11.50
#FFFFFF	11.50	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003886

Deuteranopia (green-blind)

#003981

Tritanopia (blue-blind)

#46364E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511a83;
/* rgb */ color: rgb(81, 26, 131);
/* oklch */ color: oklch(36.6% 0.163 302.6);

Tailwind

colors: {
  custom: {
    50: '#875ea8',
    500: '#511a83',
    950: '#000000',
  },
}

SCSS

$custom: #511a83;
$custom-light: #875ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#511a83",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 131
  },
  "hsl": {
    "h": 271.429,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.36603,
    "c": 0.1625,
    "h": 302.6
  },
  "luminance": 0.04127
}

Semantic roles & 50–950 ramp

primary

#511A83

secondary

#7AB742

accent

#EA3E90

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511A83

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

Preview Lab → · Contrast checker → · Palette generator →