#581BB3#581BB3

#581BB3 is a dark, highly saturated violet. Relative luminance 0.061; OKLCH L 42.1% C 0.212 H 292.6°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#581BB3
RGB	rgb(88, 27, 179)
HSL	hsl(264, 74%, 40%)
HSV	hsv(264, 85%, 70%)
CMYK	cmyk(50.8%, 84.9%, 0%, 29.8%)
CIE-LAB	lab(29.70, 57.65, -68.13)
CIE-LCH	lch(29.70, 89.25, 310.24°)
OKLab	oklab(42.07% 0.0815 -0.1957)
OKLCH	oklch(42.07% 0.212 292.6)
XYZ	xyz(12.5508, 6.1128, 43.1577)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581BB3 #76B31B

analogous

#1B2AB3 #581BB3 #A41BB3

triadic

#581BB3 #B3581B #1BB358

tetradic

#581BB3 #B31B2A #76B31B #1BB3A4

square

#581BB3 #B31B2A #76B31B #1BB3A4

split-complementary

#581BB3 #B3A41B #2AB31B

monochromatic

#240B49 #3E137E #581BB3 #742CDF #9761E7

Accessibility & contrast

On white

9.45

#581BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#581BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581BB3

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581BB3	#FFFFFF	#000000	##FFFFFF
##581BB3	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B7

Deuteranopia (green-blind)

#0043B0

Tritanopia (blue-blind)

#394A6A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #581bb3;
/* rgb */ color: rgb(88, 27, 179);
/* oklch */ color: oklch(42.1% 0.212 292.6);

Tailwind

colors: {
  custom: {
    50: '#9162cb',
    500: '#581bb3',
    950: '#000000',
  },
}

SCSS

$custom: #581bb3;
$custom-light: #9162cb;
$custom-dark: #000000;

JSON

{
  "hex": "#581bb3",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 179
  },
  "hsl": {
    "h": 264.079,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.42071,
    "c": 0.21201,
    "h": 292.6
  },
  "luminance": 0.06113
}

Semantic roles & 50–950 ramp

primary

#581BB3

secondary

#A0CC5E

accent

#F037A6

background

#F9F6FC

surface

#F2EBF9

border

#CCC6D2

text

#0E0613

muted

#7E7A82

Preview Lab

Preview with #581BB3

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

Preview Lab → · Contrast checker → · Palette generator →