#566CCF#566CCF

#566CCF is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.4% C 0.154 H 271.3°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#566CCF
RGB	rgb(86, 108, 207)
HSL	hsl(229, 56%, 57%)
HSV	hsv(229, 58%, 81%)
CMYK	cmyk(58.5%, 47.8%, 0%, 18.8%)
CIE-LAB	lab(48.52, 21.55, -53.87)
CIE-LCH	lch(48.52, 58.02, 291.80°)
OKLab	oklab(56.42% 0.0034 -0.1539)
OKLCH	oklch(56.42% 0.154 271.3)
XYZ	xyz(20.4591, 17.2070, 61.2625)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566CCF #CFB956

analogous

#56A8CF #566CCF #7D56CF

triadic

#566CCF #CF566C #6CCF56

tetradic

#566CCF #CF56A8 #CFB956 #56CF7D

square

#566CCF #CF56A8 #CFB956 #56CF7D

split-complementary

#566CCF #CF7D56 #A8CF56

monochromatic

#263785 #334BB5 #566CCF #8695DD #B5BFEA

Accessibility & contrast

On white

4.73

#566CCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#566CCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566CCF

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566CCF	#FFFFFF	#000000	##FFFFFF
##566CCF	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B79D3

Deuteranopia (green-blind)

#286ECD

Tritanopia (blue-blind)

#008293

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #566ccf;
/* rgb */ color: rgb(86, 108, 207);
/* oklch */ color: oklch(56.4% 0.154 271.3);

Tailwind

colors: {
  custom: {
    50: '#8f95de',
    500: '#566ccf',
    950: '#000000',
  },
}

SCSS

$custom: #566ccf;
$custom-light: #8f95de;
$custom-dark: #000000;

JSON

{
  "hex": "#566ccf",
  "rgb": {
    "r": 86,
    "g": 108,
    "b": 207
  },
  "hsl": {
    "h": 229.091,
    "s": 55.76,
    "l": 57.451
  },
  "oklch": {
    "l": 0.56422,
    "c": 0.1539,
    "h": 271.3
  },
  "luminance": 0.17209
}

Semantic roles & 50–950 ramp

primary

#566CCF

secondary

#D9D0A8

accent

#C449DF

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #566CCF

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

Preview Lab → · Contrast checker → · Palette generator →