#566FBC#566FBC

#566FBC is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.8% C 0.123 H 268.6°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#566FBC
RGB	rgb(86, 111, 188)
HSL	hsl(225, 43%, 54%)
HSV	hsv(225, 54%, 74%)
CMYK	cmyk(54.3%, 41%, 0%, 26.3%)
CIE-LAB	lab(48.23, 13.41, -43.42)
CIE-LCH	lch(48.23, 45.44, 287.17°)
OKLab	oklab(55.85% -0.0029 -0.1232)
OKLCH	oklch(55.85% 0.123 268.6)
XYZ	xyz(18.5963, 16.9768, 49.8641)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FBC #BCA356

analogous

#56A2BC #566FBC #7056BC

triadic

#566FBC #BC566F #6FBC56

tetradic

#566FBC #BC56A2 #BCA356 #56BC70

square

#566FBC #BC56A2 #BCA356 #56BC70

split-complementary

#566FBC #BC7056 #A2BC56

monochromatic

#2B3B6D #3C5398 #566FBC #8294CD #AEBADF

Accessibility & contrast

On white

4.78

#566FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#566FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566FBC

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FBC	#FFFFFF	#000000	##FFFFFF
##566FBC	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F77BF

Deuteranopia (green-blind)

#436EBA

Tritanopia (blue-blind)

#20808C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #566fbc;
/* rgb */ color: rgb(86, 111, 188);
/* oklch */ color: oklch(55.8% 0.123 268.6);

Tailwind

colors: {
  custom: {
    50: '#8d98d0',
    500: '#566fbc',
    950: '#000000',
  },
}

SCSS

$custom: #566fbc;
$custom-light: #8d98d0;
$custom-dark: #000000;

JSON

{
  "hex": "#566fbc",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 188
  },
  "hsl": {
    "h": 225.294,
    "s": 43.22,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55846,
    "c": 0.12319,
    "h": 268.6
  },
  "luminance": 0.16978
}

Semantic roles & 50–950 ramp

primary

#566FBC

secondary

#CDC2A1

accent

#B455D3

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #566FBC

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

Preview Lab → · Contrast checker → · Palette generator →