#566BB3#566BB3

#566BB3 is a mid, moderate blue. Relative luminance 0.157; OKLCH L 54.5% C 0.115 H 270.0°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#566BB3
RGB	rgb(86, 107, 179)
HSL	hsl(226, 38%, 52%)
HSV	hsv(226, 52%, 70%)
CMYK	cmyk(52%, 40.2%, 0%, 29.8%)
CIE-LAB	lab(46.64, 12.97, -40.72)
CIE-LCH	lch(46.64, 42.74, 287.67°)
OKLab	oklab(54.47% 0 -0.1153)
OKLCH	oklch(54.47% 0.115 270)
XYZ	xyz(17.2295, 15.7473, 44.7707)
Luminance	0.1575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566BB3 #B39E56

analogous

#5699B3 #566BB3 #7056B3

triadic

#566BB3 #B3566B #6BB356

tetradic

#566BB3 #B35699 #B39E56 #56B370

square

#566BB3 #B35699 #B39E56 #56B370

split-complementary

#566BB3 #B37056 #99B356

monochromatic

#2C3862 #3F518D #566BB3 #8090C6 #AAB5D9

Accessibility & contrast

On white

5.06

#566BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#566BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566BB3

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566BB3	#FFFFFF	#000000	##FFFFFF
##566BB3	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E73B6

Deuteranopia (green-blind)

#446BB1

Tritanopia (blue-blind)

#2C7A86

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #566bb3;
/* rgb */ color: rgb(86, 107, 179);
/* oklch */ color: oklch(54.5% 0.115 270.0);

Tailwind

colors: {
  custom: {
    50: '#8b95ca',
    500: '#566bb3',
    950: '#000000',
  },
}

SCSS

$custom: #566bb3;
$custom-light: #8b95ca;
$custom-dark: #000000;

JSON

{
  "hex": "#566bb3",
  "rgb": {
    "r": 86,
    "g": 107,
    "b": 179
  },
  "hsl": {
    "h": 226.452,
    "s": 37.959,
    "l": 51.961
  },
  "oklch": {
    "l": 0.54465,
    "c": 0.1153,
    "h": 270
  },
  "luminance": 0.15748
}

Semantic roles & 50–950 ramp

primary

#566BB3

secondary

#C7BE9E

accent

#B45ACE

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #566BB3

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

Preview Lab → · Contrast checker → · Palette generator →