#566FCE#566FCE

#566FCE is a mid, vivid blue. Relative luminance 0.178; OKLCH L 57.0% C 0.149 H 270.1°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#566FCE
RGB	rgb(86, 111, 206)
HSL	hsl(228, 55%, 57%)
HSV	hsv(228, 58%, 81%)
CMYK	cmyk(58.3%, 46.1%, 0%, 19.2%)
CIE-LAB	lab(49.25, 19.36, -52.12)
CIE-LCH	lch(49.25, 55.60, 290.37°)
OKLab	oklab(56.96% 0.0001 -0.1487)
OKLCH	oklch(56.96% 0.149 270.1)
XYZ	xyz(20.6591, 17.8019, 60.7280)
Luminance	0.1780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FCE #CEB556

analogous

#56ABCE #566FCE #7956CE

triadic

#566FCE #CE566F #6FCE56

tetradic

#566FCE #CE56AB #CEB556 #56CE79

square

#566FCE #CE56AB #CEB556 #56CE79

split-complementary

#566FCE #CE7956 #ABCE56

monochromatic

#263A83 #344EB3 #566FCE #8597DC #B5C0EA

Accessibility & contrast

On white

4.60

#566FCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#566FCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #566FCE

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FCE	#FFFFFF	#000000	##FFFFFF
##566FCE	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#427BD2

Deuteranopia (green-blind)

#3170CC

Tritanopia (blue-blind)

#008494

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #566fce;
/* rgb */ color: rgb(86, 111, 206);
/* oklch */ color: oklch(57.0% 0.149 270.1);

Tailwind

colors: {
  custom: {
    50: '#8f98dd',
    500: '#566fce',
    950: '#000000',
  },
}

SCSS

$custom: #566fce;
$custom-light: #8f98dd;
$custom-dark: #000000;

JSON

{
  "hex": "#566fce",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 206
  },
  "hsl": {
    "h": 227.5,
    "s": 55.046,
    "l": 57.255
  },
  "oklch": {
    "l": 0.56963,
    "c": 0.14869,
    "h": 270.1
  },
  "luminance": 0.17804
}

Semantic roles & 50–950 ramp

primary

#566FCE

secondary

#D8CEA8

accent

#BF49DE

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #566FCE

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

Preview Lab → · Contrast checker → · Palette generator →