#566DCF#566DCF

#566DCF is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.6% C 0.153 H 270.9°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#566DCF
RGB	rgb(86, 109, 207)
HSL	hsl(229, 56%, 57%)
HSV	hsv(229, 58%, 81%)
CMYK	cmyk(58.5%, 47.3%, 0%, 18.8%)
CIE-LAB	lab(48.78, 20.93, -53.45)
CIE-LCH	lch(48.78, 57.40, 291.39°)
OKLab	oklab(56.62% 0.0024 -0.1526)
OKLCH	oklch(56.62% 0.153 270.9)
XYZ	xyz(20.5651, 17.4191, 61.2979)
Luminance	0.1742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566DCF #CFB856

analogous

#56A9CF #566DCF #7C56CF

triadic

#566DCF #CF566D #6DCF56

tetradic

#566DCF #CF56A9 #CFB856 #56CF7C

square

#566DCF #CF56A9 #CFB856 #56CF7C

split-complementary

#566DCF #CF7C56 #A9CF56

monochromatic

#263885 #334CB5 #566DCF #8696DD #B5BFEA

Accessibility & contrast

On white

4.68

#566DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#566DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566DCF

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566DCF	#FFFFFF	#000000	##FFFFFF
##566DCF	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D79D3

Deuteranopia (green-blind)

#2A6FCD

Tritanopia (blue-blind)

#008394

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #566dcf;
/* rgb */ color: rgb(86, 109, 207);
/* oklch */ color: oklch(56.6% 0.153 270.9);

Tailwind

colors: {
  custom: {
    50: '#8f96de',
    500: '#566dcf',
    950: '#000000',
  },
}

SCSS

$custom: #566dcf;
$custom-light: #8f96de;
$custom-dark: #000000;

JSON

{
  "hex": "#566dcf",
  "rgb": {
    "r": 86,
    "g": 109,
    "b": 207
  },
  "hsl": {
    "h": 228.595,
    "s": 55.76,
    "l": 57.451
  },
  "oklch": {
    "l": 0.56623,
    "c": 0.15263,
    "h": 270.9
  },
  "luminance": 0.17421
}

Semantic roles & 50–950 ramp

primary

#566DCF

secondary

#D9D0A8

accent

#C249DF

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #566DCF

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

Preview Lab → · Contrast checker → · Palette generator →