#581F9C#581F9C

#581F9C is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.2% C 0.185 H 298.0°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#581F9C
RGB	rgb(88, 31, 156)
HSL	hsl(267, 67%, 37%)
HSV	hsv(267, 80%, 61%)
CMYK	cmyk(43.6%, 80.1%, 0%, 38.8%)
CIE-LAB	lab(27.99, 50.39, -57.05)
CIE-LCH	lch(27.99, 76.12, 311.46°)
OKLab	oklab(40.23% 0.0868 -0.1633)
OKLCH	oklch(40.23% 0.185 298)
XYZ	xyz(10.5137, 5.4548, 31.9450)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581F9C #639C1F

analogous

#1F259C #581F9C #971F9C

triadic

#581F9C #9C581F #1F9C58

tetradic

#581F9C #9C1F25 #639C1F #1F9C97

square

#581F9C #9C1F25 #639C1F #1F9C97

split-complementary

#581F9C #9C971F #259C1F

monochromatic

#1E0B36 #3B1569 #581F9C #7529CF #9558DE

Accessibility & contrast

On white

10.04

#581F9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#581F9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581F9C

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581F9C	#FFFFFF	#000000	##FFFFFF
##581F9C	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429F

Deuteranopia (green-blind)

#00419A

Tritanopia (blue-blind)

#46425E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #581f9c;
/* rgb */ color: rgb(88, 31, 156);
/* oklch */ color: oklch(40.2% 0.185 298.0);

Tailwind

colors: {
  custom: {
    50: '#8e62ba',
    500: '#581f9c',
    950: '#000000',
  },
}

SCSS

$custom: #581f9c;
$custom-light: #8e62ba;
$custom-dark: #000000;

JSON

{
  "hex": "#581f9c",
  "rgb": {
    "r": 88,
    "g": 31,
    "b": 156
  },
  "hsl": {
    "h": 267.36,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40226,
    "c": 0.18494,
    "h": 298
  },
  "luminance": 0.05455
}

Semantic roles & 50–950 ramp

primary

#581F9C

secondary

#90C155

accent

#EA3E9B

background

#F9F6FB

surface

#F1EBF6

border

#CBC6D0

text

#0D0512

muted

#7E7A81

Preview Lab

Preview with #581F9C

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

Preview Lab → · Contrast checker → · Palette generator →