#581B78#581B78

#581B78 is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.7% C 0.152 H 310.9°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#581B78
RGB	rgb(88, 27, 120)
HSL	hsl(279, 63%, 29%)
HSV	hsv(279, 78%, 47%)
CMYK	cmyk(26.7%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(24.37, 43.33, -40.50)
CIE-LCH	lch(24.37, 59.31, 316.93°)
OKLab	oklab(36.74% 0.0995 -0.1147)
OKLCH	oklch(36.74% 0.152 310.9)
XYZ	xyz(7.8060, 4.2148, 18.1680)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B78 #3B781B

analogous

#2A1B78 #581B78 #781B6A

triadic

#581B78 #78581B #1B7858

tetradic

#581B78 #782A1B #3B781B #1B6A78

square

#581B78 #782A1B #3B781B #1B6A78

split-complementary

#581B78 #6A781B #1B782A

monochromatic

#120619 #331046 #581B78 #7D26AA #9E3BD3

Accessibility & contrast

On white

11.39

#581B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#581B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B78

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B78	#FFFFFF	#000000	##FFFFFF
##581B78	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377B

Deuteranopia (green-blind)

#083B76

Tritanopia (blue-blind)

#543148

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #581b78;
/* rgb */ color: rgb(88, 27, 120);
/* oklch */ color: oklch(36.7% 0.152 310.9);

Tailwind

colors: {
  custom: {
    50: '#8b5ea0',
    500: '#581b78',
    950: '#000000',
  },
}

SCSS

$custom: #581b78;
$custom-light: #8b5ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#581b78",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 279.355,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36738,
    "c": 0.15183,
    "h": 310.9
  },
  "luminance": 0.04215
}

Semantic roles & 50–950 ramp

primary

#581B78

secondary

#67AC43

accent

#E6417A

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050F

muted

#7D797E

Preview Lab

Preview with #581B78

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

Preview Lab → · Contrast checker → · Palette generator →