#566FEF#566FEF

#566FEF is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.2% C 0.194 H 271.0°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#566FEF
RGB	rgb(86, 111, 239)
HSL	hsl(230, 83%, 64%)
HSV	hsv(230, 64%, 94%)
CMYK	cmyk(64%, 53.6%, 0%, 6.3%)
CIE-LAB	lab(51.36, 30.45, -67.37)
CIE-LCH	lch(51.36, 73.93, 294.32°)
OKLab	oklab(59.23% 0.0034 -0.1935)
OKLCH	oklch(59.23% 0.194 271)
XYZ	xyz(25.0969, 19.5771, 84.1008)
Luminance	0.1958 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FEF #EFD656

analogous

#56BBEF #566FEF #8956EF

triadic

#566FEF #EF566F #6FEF56

tetradic

#566FEF #EF56BB #EFD656 #56EF89

square

#566FEF #EF56BB #EFD656 #56EF89

split-complementary

#566FEF #EF8956 #BBEF56

monochromatic

#122DB9 #1E3FEA #566FEF #8E9FF4 #C6CEFA

Accessibility & contrast

On white

4.27

#566FEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#566FEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #566FEF

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FEF	#FFFFFF	#000000	##000000
##566FEF	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F81F3

Deuteranopia (green-blind)

#0074EC

Tritanopia (blue-blind)

#008DA4

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #566fef;
/* rgb */ color: rgb(86, 111, 239);
/* oklch */ color: oklch(59.2% 0.194 271.0);

Tailwind

colors: {
  custom: {
    50: '#9598f5',
    500: '#566fef',
    950: '#000000',
  },
}

SCSS

$custom: #566fef;
$custom-light: #9598f5;
$custom-dark: #000000;

JSON

{
  "hex": "#566fef",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 239
  },
  "hsl": {
    "h": 230.196,
    "s": 82.703,
    "l": 63.725
  },
  "oklch": {
    "l": 0.59225,
    "c": 0.19358,
    "h": 271
  },
  "luminance": 0.19579
}

Semantic roles & 50–950 ramp

primary

#566FEF

secondary

#EBE3B5

accent

#BC06DF

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0F0D17

muted

#7E7E85

Preview Lab

Preview with #566FEF

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

Preview Lab → · Contrast checker → · Palette generator →