#566BCC#566BCC

#566BCC is a mid, vivid blue. Relative luminance 0.169; OKLCH L 56.0% C 0.151 H 271.6°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#566BCC
RGB	rgb(86, 107, 204)
HSL	hsl(229, 54%, 57%)
HSV	hsv(229, 58%, 80%)
CMYK	cmyk(57.8%, 47.5%, 0%, 20%)
CIE-LAB	lab(48.07, 21.17, -52.87)
CIE-LCH	lch(48.07, 56.95, 291.83°)
OKLab	oklab(56.02% 0.0041 -0.1509)
OKLCH	oklch(56.02% 0.151 271.6)
XYZ	xyz(19.9909, 16.8519, 59.3143)
Luminance	0.1685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566BCC #CCB756

analogous

#56A6CC #566BCC #7C56CC

triadic

#566BCC #CC566B #6BCC56

tetradic

#566BCC #CC56A6 #CCB756 #56CC7C

square

#566BCC #CC56A6 #CCB756 #56CC7C

split-complementary

#566BCC #CC7C56 #A6CC56

monochromatic

#273781 #354BB0 #566BCC #8594DA #B4BDE8

Accessibility & contrast

On white

4.80

#566BCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#566BCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566BCC

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566BCC	#FFFFFF	#000000	##FFFFFF
##566BCC	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C78D0

Deuteranopia (green-blind)

#2A6DCA

Tritanopia (blue-blind)

#008192

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #566bcc;
/* rgb */ color: rgb(86, 107, 204);
/* oklch */ color: oklch(56.0% 0.151 271.6);

Tailwind

colors: {
  custom: {
    50: '#8f95dc',
    500: '#566bcc',
    950: '#000000',
  },
}

SCSS

$custom: #566bcc;
$custom-light: #8f95dc;
$custom-dark: #000000;

JSON

{
  "hex": "#566bcc",
  "rgb": {
    "r": 86,
    "g": 107,
    "b": 204
  },
  "hsl": {
    "h": 229.322,
    "s": 53.636,
    "l": 56.863
  },
  "oklch": {
    "l": 0.56024,
    "c": 0.151,
    "h": 271.6
  },
  "luminance": 0.16853
}

Semantic roles & 50–950 ramp

primary

#566BCC

secondary

#D7CEA7

accent

#C34BDD

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #566BCC

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

Preview Lab → · Contrast checker → · Palette generator →