#581B82#581B82

#581B82 is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.6% C 0.162 H 306.9°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#581B82
RGB	rgb(88, 27, 130)
HSL	hsl(276, 66%, 31%)
HSV	hsv(276, 79%, 51%)
CMYK	cmyk(32.3%, 79.2%, 0%, 49%)
CIE-LAB	lab(25.17, 45.66, -45.54)
CIE-LCH	lch(25.17, 64.49, 315.07°)
OKLab	oklab(37.55% 0.0974 -0.1295)
OKLCH	oklch(37.55% 0.162 306.9)
XYZ	xyz(8.4448, 4.4704, 21.5328)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.18

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B82 #45821B

analogous

#241B82 #581B82 #821B78

triadic

#581B82 #82581B #1B8258

tetradic

#581B82 #82241B #45821B #1B7882

square

#581B82 #82241B #45821B #1B7882

split-complementary

#581B82 #78821B #1B8224

monochromatic

#13061D #36104F #581B82 #7A26B5 #9A40D7

Accessibility & contrast

On white

11.09

#581B82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#581B82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B82

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B82	#FFFFFF	#000000	##FFFFFF
##581B82	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A85

Deuteranopia (green-blind)

#003C80

Tritanopia (blue-blind)

#51354E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #581b82;
/* rgb */ color: rgb(88, 27, 130);
/* oklch */ color: oklch(37.6% 0.162 306.9);

Tailwind

colors: {
  custom: {
    50: '#8c5fa7',
    500: '#581b82',
    950: '#000000',
  },
}

SCSS

$custom: #581b82;
$custom-light: #8c5fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#581b82",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 130
  },
  "hsl": {
    "h": 275.534,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37553,
    "c": 0.16202,
    "h": 306.9
  },
  "luminance": 0.0447
}

Semantic roles & 50–950 ramp

primary

#581B82

secondary

#72B643

accent

#E93F84

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #581B82

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

Preview Lab → · Contrast checker → · Palette generator →