#566BCF#566BCF

#566BCF is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.2% C 0.155 H 271.7°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#566BCF
RGB	rgb(86, 107, 207)
HSL	hsl(230, 56%, 57%)
HSV	hsv(230, 58%, 81%)
CMYK	cmyk(58.5%, 48.3%, 0%, 18.8%)
CIE-LAB	lab(48.26, 22.17, -54.29)
CIE-LCH	lch(48.26, 58.65, 292.21°)
OKLab	oklab(56.22% 0.0045 -0.1551)
OKLCH	oklch(56.22% 0.155 271.7)
XYZ	xyz(20.3542, 16.9972, 61.2276)
Luminance	0.1700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566BCF #CFBA56

analogous

#56A7CF #566BCF #7E56CF

triadic

#566BCF #CF566B #6BCF56

tetradic

#566BCF #CF56A7 #CFBA56 #56CF7E

square

#566BCF #CF56A7 #CFBA56 #56CF7E

split-complementary

#566BCF #CF7E56 #A7CF56

monochromatic

#263685 #334AB5 #566BCF #8695DD #B5BEEA

Accessibility & contrast

On white

4.77

#566BCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#566BCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566BCF

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566BCF	#FFFFFF	#000000	##FFFFFF
##566BCF	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3978D3

Deuteranopia (green-blind)

#256ECD

Tritanopia (blue-blind)

#008293

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #566bcf;
/* rgb */ color: rgb(86, 107, 207);
/* oklch */ color: oklch(56.2% 0.155 271.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#566bcf",
  "rgb": {
    "r": 86,
    "g": 107,
    "b": 207
  },
  "hsl": {
    "h": 229.587,
    "s": 55.76,
    "l": 57.451
  },
  "oklch": {
    "l": 0.56222,
    "c": 0.15518,
    "h": 271.7
  },
  "luminance": 0.16999
}

Semantic roles & 50–950 ramp

primary

#566BCF

secondary

#D9D0A8

accent

#C549DF

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #566BCF

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

Preview Lab → · Contrast checker → · Palette generator →