#581F9B#581F9B

#581F9B is a dark, vivid violet. Relative luminance 0.054; OKLCH L 40.1% C 0.184 H 298.3°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#581F9B
RGB	rgb(88, 31, 155)
HSL	hsl(268, 67%, 36%)
HSV	hsv(268, 80%, 61%)
CMYK	cmyk(43.2%, 80%, 0%, 39.2%)
CIE-LAB	lab(27.90, 50.14, -56.58)
CIE-LCH	lch(27.90, 75.60, 311.55°)
OKLab	oklab(40.14% 0.0871 -0.162)
OKLCH	oklch(40.14% 0.184 298.3)
XYZ	xyz(10.4294, 5.4211, 31.5009)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581F9B #629B1F

analogous

#1F249B #581F9B #961F9B

triadic

#581F9B #9B581F #1F9B58

tetradic

#581F9B #9B1F24 #629B1F #1F9B96

square

#581F9B #9B1F24 #629B1F #1F9B96

split-complementary

#581F9B #9B961F #249B1F

monochromatic

#1E0B35 #3B1568 #581F9B #7529CE #9557DD

Accessibility & contrast

On white

10.08

#581F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#581F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581F9B

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581F9B	#FFFFFF	#000000	##FFFFFF
##581F9B	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429E

Deuteranopia (green-blind)

#004199

Tritanopia (blue-blind)

#47415D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #581f9b;
/* rgb */ color: rgb(88, 31, 155);
/* oklch */ color: oklch(40.1% 0.184 298.3);

Tailwind

colors: {
  custom: {
    50: '#8e62b9',
    500: '#581f9b',
    950: '#000000',
  },
}

SCSS

$custom: #581f9b;
$custom-light: #8e62b9;
$custom-dark: #000000;

JSON

{
  "hex": "#581f9b",
  "rgb": {
    "r": 88,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 267.581,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.40135,
    "c": 0.18389,
    "h": 298.3
  },
  "luminance": 0.05421
}

Semantic roles & 50–950 ramp

primary

#581F9B

secondary

#8FC155

accent

#EA3E9B

background

#F9F6FB

surface

#F1EBF6

border

#CBC6D0

text

#0D0512

muted

#7E7A81

Preview Lab

Preview with #581F9B

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

Preview Lab → · Contrast checker → · Palette generator →