#566BB5#566BB5

#566BB5 is a mid, moderate blue. Relative luminance 0.158; OKLCH L 54.6% C 0.118 H 270.2°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#566BB5
RGB	rgb(86, 107, 181)
HSL	hsl(227, 39%, 52%)
HSV	hsv(227, 52%, 71%)
CMYK	cmyk(52.5%, 40.9%, 0%, 29%)
CIE-LAB	lab(46.75, 13.62, -41.71)
CIE-LCH	lch(46.75, 43.88, 288.08°)
OKLab	oklab(54.58% 0.0004 -0.1182)
OKLCH	oklch(54.58% 0.118 270.2)
XYZ	xyz(17.4332, 15.8288, 45.8437)
Luminance	0.1583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566BB5 #B5A056

analogous

#569BB5 #566BB5 #7156B5

triadic

#566BB5 #B5566B #6BB556

tetradic

#566BB5 #B5569B #B5A056 #56B571

square

#566BB5 #B5569B #B5A056 #56B571

split-complementary

#566BB5 #B57156 #9BB556

monochromatic

#2C3965 #3F508F #566BB5 #8190C8 #ABB6DA

Accessibility & contrast

On white

5.04

#566BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#566BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566BB5

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566BB5	#FFFFFF	#000000	##FFFFFF
##566BB5	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D73B8

Deuteranopia (green-blind)

#436BB3

Tritanopia (blue-blind)

#2A7B87

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #566bb5;
/* rgb */ color: rgb(86, 107, 181);
/* oklch */ color: oklch(54.6% 0.118 270.2);

Tailwind

colors: {
  custom: {
    50: '#8c95cb',
    500: '#566bb5',
    950: '#000000',
  },
}

SCSS

$custom: #566bb5;
$custom-light: #8c95cb;
$custom-dark: #000000;

JSON

{
  "hex": "#566bb5",
  "rgb": {
    "r": 86,
    "g": 107,
    "b": 181
  },
  "hsl": {
    "h": 226.737,
    "s": 39.095,
    "l": 52.353
  },
  "oklch": {
    "l": 0.54583,
    "c": 0.1182,
    "h": 270.2
  },
  "luminance": 0.1583
}

Semantic roles & 50–950 ramp

primary

#566BB5

secondary

#C8BF9F

accent

#B559CF

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #566BB5

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

Preview Lab → · Contrast checker → · Palette generator →