#566BDD#566BDD

#566BDD is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.2% C 0.174 H 271.9°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#566BDD
RGB	rgb(86, 107, 221)
HSL	hsl(231, 67%, 60%)
HSV	hsv(231, 61%, 87%)
CMYK	cmyk(61.1%, 51.6%, 0%, 13.3%)
CIE-LAB	lab(49.15, 26.86, -60.82)
CIE-LCH	lch(49.15, 66.49, 293.82°)
OKLab	oklab(57.18% 0.0058 -0.1743)
OKLCH	oklch(57.18% 0.174 271.9)
XYZ	xyz(22.1422, 17.7124, 70.6446)
Luminance	0.1771 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566BDD #DDC856

analogous

#56AEDD #566BDD #8556DD

triadic

#566BDD #DD566B #6BDD56

tetradic

#566BDD #DD56AE #DDC856 #56DD85

square

#566BDD #DD56AE #DDC856 #56DD85

split-complementary

#566BDD #DD8556 #AEDD56

monochromatic

#1F329A #2943CD #566BDD #8998E7 #BCC4F2

Accessibility & contrast

On white

4.62

#566BDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#566BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #566BDD

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566BDD	#FFFFFF	#000000	##FFFFFF
##566BDD	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#287BE1

Deuteranopia (green-blind)

#006FDB

Tritanopia (blue-blind)

#00859A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #566bdd;
/* rgb */ color: rgb(86, 107, 221);
/* oklch */ color: oklch(57.2% 0.174 271.9);

Tailwind

colors: {
  custom: {
    50: '#9295e8',
    500: '#566bdd',
    950: '#000000',
  },
}

SCSS

$custom: #566bdd;
$custom-light: #9295e8;
$custom-dark: #000000;

JSON

{
  "hex": "#566bdd",
  "rgb": {
    "r": 86,
    "g": 107,
    "b": 221
  },
  "hsl": {
    "h": 230.667,
    "s": 66.502,
    "l": 60.196
  },
  "oklch": {
    "l": 0.5718,
    "c": 0.17443,
    "h": 271.9
  },
  "luminance": 0.17714
}

Semantic roles & 50–950 ramp

primary

#566BDD

secondary

#E1D9AE

accent

#B217CE

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #566BDD

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

Preview Lab → · Contrast checker → · Palette generator →