#501B81#501B81

#501B81 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.4% C 0.159 H 302.6°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#501B81
RGB	rgb(80, 27, 129)
HSL	hsl(271, 65%, 31%)
HSV	hsv(271, 79%, 51%)
CMYK	cmyk(38%, 79.1%, 0%, 49.4%)
CIE-LAB	lab(23.92, 43.94, -47.00)
CIE-LCH	lch(23.92, 64.34, 313.07°)
OKLab	oklab(36.4% 0.0856 -0.1341)
OKLCH	oklch(36.4% 0.159 302.6)
XYZ	xyz(7.6617, 4.0743, 21.1474)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.45

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#501B81 #4C811B

analogous

#1D1B81 #501B81 #811B7F

triadic

#501B81 #81501B #1B8150

tetradic

#501B81 #811D1B #4C811B #1B7F81

square

#501B81 #811D1B #4C811B #1B7F81

split-complementary

#501B81 #7F811B #1B811D

monochromatic

#11061C #31104E #501B81 #6F26B4 #8E3FD7

Accessibility & contrast

On white

11.57

#501B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#501B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #501B81

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##501B81	#FFFFFF	#000000	##FFFFFF
##501B81	1.00	11.57	1.81	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003884

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#46364D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #501b81;
/* rgb */ color: rgb(80, 27, 129);
/* oklch */ color: oklch(36.4% 0.159 302.6);

Tailwind

colors: {
  custom: {
    50: '#865ea6',
    500: '#501b81',
    950: '#000000',
  },
}

SCSS

$custom: #501b81;
$custom-light: #865ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#501b81",
  "rgb": {
    "r": 80,
    "g": 27,
    "b": 129
  },
  "hsl": {
    "h": 271.176,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36399,
    "c": 0.15911,
    "h": 302.6
  },
  "luminance": 0.04074
}

Semantic roles & 50–950 ramp

primary

#501B81

secondary

#7AB543

accent

#E83F91

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #501B81

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

Preview Lab → · Contrast checker → · Palette generator →