#581B66#581B66

#581B66 is a dark, vivid purple. Relative luminance 0.038; OKLCH L 35.4% C 0.134 H 319.5°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#581B66
RGB	rgb(88, 27, 102)
HSL	hsl(289, 58%, 25%)
HSV	hsv(289, 74%, 40%)
CMYK	cmyk(13.7%, 73.5%, 0%, 60%)
CIE-LAB	lab(23.06, 39.35, -31.00)
CIE-LCH	lch(23.06, 50.09, 321.77°)
OKLab	oklab(35.39% 0.1017 -0.0868)
OKLCH	oklch(35.39% 0.134 319.5)
XYZ	xyz(6.8144, 3.8182, 12.9458)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B66 #29661B

analogous

#321B66 #581B66 #661B4E

triadic

#581B66 #66581B #1B6658

tetradic

#581B66 #66321B #29661B #1B4E66

square

#581B66 #66321B #29661B #1B4E66

split-complementary

#581B66 #4E661B #1B6632

monochromatic

#150618 #2E0E36 #581B66 #822896 #AB35C7

Accessibility & contrast

On white

11.91

#581B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#581B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B66

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B66	#FFFFFF	#000000	##FFFFFF
##581B66	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003368

Deuteranopia (green-blind)

#213964

Tritanopia (blue-blind)

#58293E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #581b66;
/* rgb */ color: rgb(88, 27, 102);
/* oklch */ color: oklch(35.4% 0.134 319.5);

Tailwind

colors: {
  custom: {
    50: '#8a5d92',
    500: '#581b66',
    950: '#000000',
  },
}

SCSS

$custom: #581b66;
$custom-light: #8a5d92;
$custom-dark: #000000;

JSON

{
  "hex": "#581b66",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 288.8,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35392,
    "c": 0.13372,
    "h": 319.5
  },
  "luminance": 0.03818
}

Semantic roles & 50–950 ramp

primary

#581B66

secondary

#529B41

accent

#E14663

background

#F8F5F9

surface

#F0E9F1

border

#CBC5CB

text

#0C050D

muted

#7D797E

Preview Lab

Preview with #581B66

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

Preview Lab → · Contrast checker → · Palette generator →