#573FE9#573FE9

#573FE9 is a mid, highly saturated blue. Relative luminance 0.115; OKLCH L 51.0% C 0.240 H 280.0°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#573FE9
RGB	rgb(87, 63, 233)
HSL	hsl(248, 79%, 58%)
HSV	hsv(248, 73%, 91%)
CMYK	cmyk(62.7%, 73%, 0%, 8.6%)
CIE-LAB	lab(40.35, 56.53, -81.96)
CIE-LCH	lch(40.35, 99.57, 304.60°)
OKLab	oklab(51.05% 0.0419 -0.2365)
OKLCH	oklch(51.05% 0.24 280)
XYZ	xyz(20.4113, 11.4629, 78.2119)
Luminance	0.1146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#573FE9 #D1E93F

analogous

#3F7CE9 #573FE9 #AC3FE9

triadic

#573FE9 #E9573F #3FE957

tetradic

#573FE9 #E93F7C #D1E93F #3FE9AC

square

#573FE9 #E93F7C #D1E93F #3FE9AC

split-complementary

#573FE9 #E9AC3F #7CE93F

monochromatic

#25129C #3218D3 #573FE9 #8776EF #B7ADF6

Accessibility & contrast

On white

6.38

#573FE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#573FE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #573FE9

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##573FE9	#FFFFFF	#000000	##FFFFFF
##573FE9	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065EE

Deuteranopia (green-blind)

#0059E6

Tritanopia (blue-blind)

#006F91

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #573fe9;
/* rgb */ color: rgb(87, 63, 233);
/* oklch */ color: oklch(51.0% 0.240 280.0);

Tailwind

colors: {
  custom: {
    50: '#9777f1',
    500: '#573fe9',
    950: '#000000',
  },
}

SCSS

$custom: #573fe9;
$custom-light: #9777f1;
$custom-dark: #000000;

JSON

{
  "hex": "#573fe9",
  "rgb": {
    "r": 87,
    "g": 63,
    "b": 233
  },
  "hsl": {
    "h": 248.471,
    "s": 79.439,
    "l": 58.039
  },
  "oklch": {
    "l": 0.51047,
    "c": 0.2402,
    "h": 280
  },
  "luminance": 0.11464
}

Semantic roles & 50–950 ramp

primary

#573FE9

secondary

#DAE4A0

accent

#F632DA

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#0F0917

muted

#7F7B85

Preview Lab

Preview with #573FE9

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

Preview Lab → · Contrast checker → · Palette generator →