#566FE3#566FE3

#566FE3 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.4% C 0.178 H 270.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#566FE3
RGB	rgb(86, 111, 227)
HSL	hsl(229, 72%, 61%)
HSV	hsv(229, 62%, 89%)
CMYK	cmyk(62.1%, 51.1%, 0%, 11%)
CIE-LAB	lab(50.56, 26.40, -61.93)
CIE-LCH	lch(50.56, 67.32, 293.09°)
OKLab	oklab(58.37% 0.0025 -0.1775)
OKLCH	oklch(58.37% 0.178 270.8)
XYZ	xyz(23.3827, 18.8914, 75.0723)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FE3 #E3CA56

analogous

#56B6E3 #566FE3 #8456E3

triadic

#566FE3 #E3566F #6FE356

tetradic

#566FE3 #E356B6 #E3CA56 #56E384

square

#566FE3 #E356B6 #E3CA56 #56E384

split-complementary

#566FE3 #E38456 #B6E356

monochromatic

#1B33A4 #2444D8 #566FE3 #8B9CEC #BFC8F4

Accessibility & contrast

On white

4.39

#566FE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#566FE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #566FE3

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FE3	#FFFFFF	#000000	##000000
##566FE3	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B7FE7

Deuteranopia (green-blind)

#0072E1

Tritanopia (blue-blind)

#008A9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #566fe3;
/* rgb */ color: rgb(86, 111, 227);
/* oklch */ color: oklch(58.4% 0.178 270.8);

Tailwind

colors: {
  custom: {
    50: '#9398ec',
    500: '#566fe3',
    950: '#000000',
  },
}

SCSS

$custom: #566fe3;
$custom-light: #9398ec;
$custom-dark: #000000;

JSON

{
  "hex": "#566fe3",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 227
  },
  "hsl": {
    "h": 229.362,
    "s": 71.574,
    "l": 61.373
  },
  "oklch": {
    "l": 0.58372,
    "c": 0.17755,
    "h": 270.8
  },
  "luminance": 0.18893
}

Semantic roles & 50–950 ramp

primary

#566FE3

secondary

#E5DBB0

accent

#B112D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #566FE3

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

Preview Lab → · Contrast checker → · Palette generator →