#566FDD#566FDD

#566FDD is a mid, vivid blue. Relative luminance 0.186; OKLCH L 58.0% C 0.169 H 270.7°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#566FDD
RGB	rgb(86, 111, 221)
HSL	hsl(229, 67%, 60%)
HSV	hsv(229, 61%, 87%)
CMYK	cmyk(61.1%, 49.8%, 0%, 13.3%)
CIE-LAB	lab(50.18, 24.38, -59.16)
CIE-LCH	lch(50.18, 63.99, 292.40°)
OKLab	oklab(57.96% 0.002 -0.1694)
OKLCH	oklch(57.96% 0.169 270.7)
XYZ	xyz(22.5690, 18.5659, 70.7868)
Luminance	0.1857 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FDD #DDC456

analogous

#56B2DD #566FDD #8156DD

triadic

#566FDD #DD566F #6FDD56

tetradic

#566FDD #DD56B2 #DDC456 #56DD81

square

#566FDD #DD56B2 #DDC456 #56DD81

split-complementary

#566FDD #DD8156 #B2DD56

monochromatic

#1F369A #2947CD #566FDD #899AE7 #BCC6F2

Accessibility & contrast

On white

4.46

#566FDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#566FDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #566FDD

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FDD	#FFFFFF	#000000	##000000
##566FDD	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#337EE1

Deuteranopia (green-blind)

#1272DB

Tritanopia (blue-blind)

#00889B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #566fdd;
/* rgb */ color: rgb(86, 111, 221);
/* oklch */ color: oklch(58.0% 0.169 270.7);

Tailwind

colors: {
  custom: {
    50: '#9298e8',
    500: '#566fdd',
    950: '#000000',
  },
}

SCSS

$custom: #566fdd;
$custom-light: #9298e8;
$custom-dark: #000000;

JSON

{
  "hex": "#566fdd",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 221
  },
  "hsl": {
    "h": 228.889,
    "s": 66.502,
    "l": 60.196
  },
  "oklch": {
    "l": 0.57958,
    "c": 0.16941,
    "h": 270.7
  },
  "luminance": 0.18568
}

Semantic roles & 50–950 ramp

primary

#566FDD

secondary

#E1D8AE

accent

#AC17CE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #566FDD

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

Preview Lab → · Contrast checker → · Palette generator →