#573FD1#573FD1

#573FD1 is a mid, highly saturated blue. Relative luminance 0.102; OKLCH L 48.8% C 0.212 H 282.7°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#573FD1
RGB	rgb(87, 63, 209)
HSL	hsl(250, 61%, 53%)
HSV	hsv(250, 70%, 82%)
CMYK	cmyk(58.4%, 69.9%, 0%, 18%)
CIE-LAB	lab(38.17, 49.39, -71.81)
CIE-LCH	lch(38.17, 87.16, 304.52°)
OKLab	oklab(48.84% 0.0466 -0.2068)
OKLCH	oklch(48.84% 0.212 282.7)
XYZ	xyz(17.2130, 10.1836, 61.3678)
Luminance	0.1018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 1.64

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#573FD1 #B9D13F

analogous

#3F70D1 #573FD1 #A03FD1

triadic

#573FD1 #D1573F #3FD157

tetradic

#573FD1 #D13F70 #B9D13F #3FD1A0

square

#573FD1 #D13F70 #B9D13F #3FD1A0

split-complementary

#573FD1 #D1A03F #70D13F

monochromatic

#2C1D79 #3E29AA #573FD1 #8270DD #ADA2E9

Accessibility & contrast

On white

6.91

#573FD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#573FD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #573FD1

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##573FD1	#FFFFFF	#000000	##FFFFFF
##573FD1	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD5

Deuteranopia (green-blind)

#0055CE

Tritanopia (blue-blind)

#066683

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #573fd1;
/* rgb */ color: rgb(87, 63, 209);
/* oklch */ color: oklch(48.8% 0.212 282.7);

Tailwind

colors: {
  custom: {
    50: '#9376e0',
    500: '#573fd1',
    950: '#000000',
  },
}

SCSS

$custom: #573fd1;
$custom-light: #9376e0;
$custom-dark: #000000;

JSON

{
  "hex": "#573fd1",
  "rgb": {
    "r": 87,
    "g": 63,
    "b": 209
  },
  "hsl": {
    "h": 249.863,
    "s": 61.345,
    "l": 53.333
  },
  "oklch": {
    "l": 0.48837,
    "c": 0.21202,
    "h": 282.7
  },
  "luminance": 0.10185
}

Semantic roles & 50–950 ramp

primary

#573FD1

secondary

#CBD597

accent

#E443CA

background

#F9F7FD

surface

#F2EDFB

border

#CCC8D4

text

#0E0915

muted

#7E7B83

Preview Lab

Preview with #573FD1

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

Preview Lab → · Contrast checker → · Palette generator →