#566FCD#566FCD

#566FCD is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.9% C 0.147 H 270.0°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#566FCD
RGB	rgb(86, 111, 205)
HSL	hsl(227, 54%, 57%)
HSV	hsv(227, 58%, 80%)
CMYK	cmyk(58%, 45.9%, 0%, 19.6%)
CIE-LAB	lab(49.20, 19.02, -51.64)
CIE-LCH	lch(49.20, 55.04, 290.22°)
OKLab	oklab(56.9% 0 -0.1473)
OKLCH	oklch(56.9% 0.147 270)
XYZ	xyz(20.5380, 17.7535, 60.0902)
Luminance	0.1776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FCD #CDB456

analogous

#56ABCD #566FCD #7956CD

triadic

#566FCD #CD566F #6FCD56

tetradic

#566FCD #CD56AB #CDB456 #56CD79

square

#566FCD #CD56AB #CDB456 #56CD79

split-complementary

#566FCD #CD7956 #ABCD56

monochromatic

#263A82 #344FB1 #566FCD #8597DB #B4BFE9

Accessibility & contrast

On white

4.61

#566FCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#566FCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #566FCD

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FCD	#FFFFFF	#000000	##FFFFFF
##566FCD	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#437AD1

Deuteranopia (green-blind)

#3270CB

Tritanopia (blue-blind)

#008494

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #566fcd;
/* rgb */ color: rgb(86, 111, 205);
/* oklch */ color: oklch(56.9% 0.147 270.0);

Tailwind

colors: {
  custom: {
    50: '#8f98dd',
    500: '#566fcd',
    950: '#000000',
  },
}

SCSS

$custom: #566fcd;
$custom-light: #8f98dd;
$custom-dark: #000000;

JSON

{
  "hex": "#566fcd",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 205
  },
  "hsl": {
    "h": 227.395,
    "s": 54.338,
    "l": 57.059
  },
  "oklch": {
    "l": 0.56898,
    "c": 0.14729,
    "h": 270
  },
  "luminance": 0.17755
}

Semantic roles & 50–950 ramp

primary

#566FCD

secondary

#D8CDA7

accent

#BF4ADE

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #566FCD

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

Preview Lab → · Contrast checker → · Palette generator →