#511C91#511C91

#511C91 is a dark, vivid violet. Relative luminance 0.046; OKLCH L 38.1% C 0.175 H 297.8°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#511C91
RGB	rgb(81, 28, 145)
HSL	hsl(267, 68%, 34%)
HSV	hsv(267, 81%, 57%)
CMYK	cmyk(44.1%, 80.7%, 0%, 43.1%)
CIE-LAB	lab(25.64, 47.74, -54.18)
CIE-LCH	lch(25.64, 72.21, 311.38°)
OKLab	oklab(38.07% 0.0817 -0.1551)
OKLCH	oklch(38.07% 0.175 297.8)
XYZ	xyz(8.9181, 4.6240, 27.2052)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C91 #5C911C

analogous

#1C2291 #511C91 #8C1C91

triadic

#511C91 #91511C #1C9151

tetradic

#511C91 #911C22 #5C911C #1C918C

square

#511C91 #911C22 #5C911C #1C918C

split-complementary

#511C91 #918C1C #22911C

monochromatic

#18082A #34125E #511C91 #6E26C4 #8D4BDC

Accessibility & contrast

On white

10.91

#511C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#511C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C91

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C91	#FFFFFF	#000000	##FFFFFF
##511C91	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D94

Deuteranopia (green-blind)

#003B8F

Tritanopia (blue-blind)

#403D57

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #511c91;
/* rgb */ color: rgb(81, 28, 145);
/* oklch */ color: oklch(38.1% 0.175 297.8);

Tailwind

colors: {
  custom: {
    50: '#895fb2',
    500: '#511c91',
    950: '#000000',
  },
}

SCSS

$custom: #511c91;
$custom-light: #895fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#511c91",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 145
  },
  "hsl": {
    "h": 267.179,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38073,
    "c": 0.17535,
    "h": 297.8
  },
  "luminance": 0.04624
}

Semantic roles & 50–950 ramp

primary

#511C91

secondary

#8ABE4A

accent

#EB3D9C

background

#F8F5FB

surface

#F0EAF6

border

#CBC6D0

text

#0C0511

muted

#7D7980

Preview Lab

Preview with #511C91

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

Preview Lab → · Contrast checker → · Palette generator →