#566DDD#566DDD

#566DDD is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.6% C 0.172 H 271.3°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#566DDD
RGB	rgb(86, 109, 221)
HSL	hsl(230, 67%, 60%)
HSV	hsv(230, 61%, 87%)
CMYK	cmyk(61.1%, 50.7%, 0%, 13.3%)
CIE-LAB	lab(49.66, 25.62, -60.00)
CIE-LCH	lch(49.66, 65.24, 293.12°)
OKLab	oklab(57.57% 0.0039 -0.1719)
OKLCH	oklch(57.57% 0.172 271.3)
XYZ	xyz(22.3532, 18.1343, 70.7149)
Luminance	0.1814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566DDD #DDC656

analogous

#56B0DD #566DDD #8356DD

triadic

#566DDD #DD566D #6DDD56

tetradic

#566DDD #DD56B0 #DDC656 #56DD83

square

#566DDD #DD56B0 #DDC656 #56DD83

split-complementary

#566DDD #DD8356 #B0DD56

monochromatic

#1F349A #2945CD #566DDD #8999E7 #BCC5F2

Accessibility & contrast

On white

4.54

#566DDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#566DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #566DDD

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566DDD	#FFFFFF	#000000	##000000
##566DDD	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E7CE1

Deuteranopia (green-blind)

#0370DB

Tritanopia (blue-blind)

#00879B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #566ddd;
/* rgb */ color: rgb(86, 109, 221);
/* oklch */ color: oklch(57.6% 0.172 271.3);

Tailwind

colors: {
  custom: {
    50: '#9296e8',
    500: '#566ddd',
    950: '#000000',
  },
}

SCSS

$custom: #566ddd;
$custom-light: #9296e8;
$custom-dark: #000000;

JSON

{
  "hex": "#566ddd",
  "rgb": {
    "r": 86,
    "g": 109,
    "b": 221
  },
  "hsl": {
    "h": 229.778,
    "s": 66.502,
    "l": 60.196
  },
  "oklch": {
    "l": 0.57567,
    "c": 0.17191,
    "h": 271.3
  },
  "luminance": 0.18136
}

Semantic roles & 50–950 ramp

primary

#566DDD

secondary

#E1D8AE

accent

#AF17CE

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #566DDD

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

Preview Lab → · Contrast checker → · Palette generator →