#573BE9#573BE9

#573BE9 is a mid, highly saturated blue. Relative luminance 0.110; OKLCH L 50.5% C 0.244 H 280.5°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#573BE9
RGB	rgb(87, 59, 233)
HSL	hsl(250, 80%, 57%)
HSV	hsv(250, 75%, 91%)
CMYK	cmyk(62.7%, 74.7%, 0%, 8.6%)
CIE-LAB	lab(39.64, 58.54, -83.13)
CIE-LCH	lch(39.64, 101.67, 305.15°)
OKLab	oklab(50.55% 0.0443 -0.2399)
OKLCH	oklch(50.55% 0.244 280.5)
XYZ	xyz(20.1978, 11.0358, 78.1408)
Luminance	0.1104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#573BE9 #CDE93B

analogous

#3B76E9 #573BE9 #AE3BE9

triadic

#573BE9 #E9573B #3BE957

tetradic

#573BE9 #E93B76 #CDE93B #3BE9AE

square

#573BE9 #E93B76 #CDE93B #3BE9AE

split-complementary

#573BE9 #E9AE3B #76E93B

monochromatic

#271198 #3517D0 #573BE9 #8672EF #B5A9F5

Accessibility & contrast

On white

6.55

#573BE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#573BE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #573BE9

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##573BE9	#FFFFFF	#000000	##FFFFFF
##573BE9	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064EE

Deuteranopia (green-blind)

#0057E6

Tritanopia (blue-blind)

#006D90

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #573be9;
/* rgb */ color: rgb(87, 59, 233);
/* oklch */ color: oklch(50.5% 0.244 280.5);

Tailwind

colors: {
  custom: {
    50: '#9775f1',
    500: '#573be9',
    950: '#000000',
  },
}

SCSS

$custom: #573be9;
$custom-light: #9775f1;
$custom-dark: #000000;

JSON

{
  "hex": "#573be9",
  "rgb": {
    "r": 87,
    "g": 59,
    "b": 233
  },
  "hsl": {
    "h": 249.655,
    "s": 79.817,
    "l": 57.255
  },
  "oklch": {
    "l": 0.50547,
    "c": 0.24396,
    "h": 280.5
  },
  "luminance": 0.11037
}

Semantic roles & 50–950 ramp

primary

#573BE9

secondary

#D8E39D

accent

#F632D7

background

#FAF7FF

surface

#F4EDFE

border

#CEC8D6

text

#0F0917

muted

#7F7B85

Preview Lab

Preview with #573BE9

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

Preview Lab → · Contrast checker → · Palette generator →