#566CDD#566CDD

#566CDD is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.4% C 0.173 H 271.6°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#566CDD
RGB	rgb(86, 108, 221)
HSL	hsl(230, 67%, 60%)
HSV	hsv(230, 61%, 87%)
CMYK	cmyk(61.1%, 51.1%, 0%, 13.3%)
CIE-LAB	lab(49.40, 26.24, -60.41)
CIE-LCH	lch(49.40, 65.86, 293.48°)
OKLab	oklab(57.37% 0.0049 -0.1731)
OKLCH	oklch(57.37% 0.173 271.6)
XYZ	xyz(22.2471, 17.9222, 70.6795)
Luminance	0.1792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566CDD #DDC756

analogous

#56B0DD #566CDD #8356DD

triadic

#566CDD #DD566C #6CDD56

tetradic

#566CDD #DD56B0 #DDC756 #56DD83

square

#566CDD #DD56B0 #DDC756 #56DD83

split-complementary

#566CDD #DD8356 #B0DD56

monochromatic

#1F339A #2944CD #566CDD #8998E7 #BCC5F2

Accessibility & contrast

On white

4.58

#566CDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#566CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #566CDD

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566CDD	#FFFFFF	#000000	##000000
##566CDD	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B7CE1

Deuteranopia (green-blind)

#0070DB

Tritanopia (blue-blind)

#00869A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #566cdd;
/* rgb */ color: rgb(86, 108, 221);
/* oklch */ color: oklch(57.4% 0.173 271.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#566cdd",
  "rgb": {
    "r": 86,
    "g": 108,
    "b": 221
  },
  "hsl": {
    "h": 230.222,
    "s": 66.502,
    "l": 60.196
  },
  "oklch": {
    "l": 0.57373,
    "c": 0.17317,
    "h": 271.6
  },
  "luminance": 0.17924
}

Semantic roles & 50–950 ramp

primary

#566CDD

secondary

#E1D9AE

accent

#B117CE

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #566CDD

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

Preview Lab → · Contrast checker → · Palette generator →