#566FDF#566FDF

#566FDF is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.1% C 0.172 H 270.7°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#566FDF
RGB	rgb(86, 111, 223)
HSL	hsl(229, 68%, 61%)
HSV	hsv(229, 61%, 87%)
CMYK	cmyk(61.4%, 50.2%, 0%, 12.5%)
CIE-LAB	lab(50.30, 25.05, -60.09)
CIE-LCH	lch(50.30, 65.10, 292.63°)
OKLab	oklab(58.1% 0.0022 -0.1721)
OKLCH	oklch(58.1% 0.172 270.7)
XYZ	xyz(22.8370, 18.6731, 72.1985)
Luminance	0.1867 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FDF #DFC656

analogous

#56B3DF #566FDF #8156DF

triadic

#566FDF #DF566F #6FDF56

tetradic

#566FDF #DF56B3 #DFC656 #56DF81

square

#566FDF #DF56B3 #DFC656 #56DF81

split-complementary

#566FDF #DF8156 #B3DF56

monochromatic

#1E359D #2746D0 #566FDF #899BE9 #BDC7F2

Accessibility & contrast

On white

4.44

#566FDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#566FDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #566FDF

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FDF	#FFFFFF	#000000	##000000
##566FDF	1.00	4.44	4.74	4.74
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#317EE3

Deuteranopia (green-blind)

#0972DD

Tritanopia (blue-blind)

#00899C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #566fdf;
/* rgb */ color: rgb(86, 111, 223);
/* oklch */ color: oklch(58.1% 0.172 270.7);

Tailwind

colors: {
  custom: {
    50: '#9298ea',
    500: '#566fdf',
    950: '#000000',
  },
}

SCSS

$custom: #566fdf;
$custom-light: #9298ea;
$custom-dark: #000000;

JSON

{
  "hex": "#566fdf",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 223
  },
  "hsl": {
    "h": 229.051,
    "s": 68.159,
    "l": 60.588
  },
  "oklch": {
    "l": 0.58095,
    "c": 0.17213,
    "h": 270.7
  },
  "luminance": 0.18675
}

Semantic roles & 50–950 ramp

primary

#566FDF

secondary

#E2D9AE

accent

#AE15D0

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #566FDF

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

Preview Lab → · Contrast checker → · Palette generator →