#511F80#511F80

#511F80 is a dark, vivid violet. Relative luminance 0.043; OKLCH L 36.9% C 0.154 H 302.9°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#511F80
RGB	rgb(81, 31, 128)
HSL	hsl(271, 61%, 31%)
HSV	hsv(271, 76%, 50%)
CMYK	cmyk(36.7%, 75.8%, 0%, 49.8%)
CIE-LAB	lab(24.60, 42.08, -45.25)
CIE-LCH	lch(24.60, 61.79, 312.92°)
OKLab	oklab(36.89% 0.0835 -0.1289)
OKLCH	oklch(36.89% 0.154 302.9)
XYZ	xyz(7.7787, 4.2878, 20.8357)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.26

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F80 #4E801F

analogous

#201F80 #511F80 #801F7E

triadic

#511F80 #80511F #1F8051

tetradic

#511F80 #80201F #4E801F #1F7E80

square

#511F80 #80201F #4E801F #1F7E80

split-complementary

#511F80 #7E801F #1F8020

monochromatic

#13071D #32134F #511F80 #702BB1 #8F47D2

Accessibility & contrast

On white

11.30

#511F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#511F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F80

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F80	#FFFFFF	#000000	##FFFFFF
##511F80	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A83

Deuteranopia (green-blind)

#003A7E

Tritanopia (blue-blind)

#47374E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #511f80;
/* rgb */ color: rgb(81, 31, 128);
/* oklch */ color: oklch(36.9% 0.154 302.9);

Tailwind

colors: {
  custom: {
    50: '#8760a6',
    500: '#511f80',
    950: '#000000',
  },
}

SCSS

$custom: #511f80;
$custom-light: #8760a6;
$custom-dark: #000000;

JSON

{
  "hex": "#511f80",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 128
  },
  "hsl": {
    "h": 270.928,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.36886,
    "c": 0.15364,
    "h": 302.9
  },
  "luminance": 0.04288
}

Semantic roles & 50–950 ramp

primary

#511F80

secondary

#7CB348

accent

#E44491

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511F80

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

Preview Lab → · Contrast checker → · Palette generator →