#566FB2#566FB2

#566FB2 is a mid, moderate blue. Relative luminance 0.166; OKLCH L 55.3% C 0.109 H 267.3°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#566FB2
RGB	rgb(86, 111, 178)
HSL	hsl(224, 37%, 52%)
HSV	hsv(224, 52%, 70%)
CMYK	cmyk(51.7%, 37.6%, 0%, 30.2%)
CIE-LAB	lab(47.70, 10.17, -38.46)
CIE-LCH	lch(47.70, 39.78, 284.82°)
OKLab	oklab(55.27% -0.0051 -0.1087)
OKLCH	oklch(55.27% 0.109 267.3)
XYZ	xyz(17.5554, 16.5605, 44.3823)
Luminance	0.1656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FB2 #B29956

analogous

#569DB2 #566FB2 #6B56B2

triadic

#566FB2 #B2566F #6FB256

tetradic

#566FB2 #B2569D #B29956 #56B26B

square

#566FB2 #B2569D #B29956 #56B26B

split-complementary

#566FB2 #B26B56 #9DB256

monochromatic

#2C3B61 #3F548B #566FB2 #8093C5 #AAB7D8

Accessibility & contrast

On white

4.87

#566FB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#566FB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566FB2

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FB2	#FFFFFF	#000000	##FFFFFF
##566FB2	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5576B5

Deuteranopia (green-blind)

#4B6DB1

Tritanopia (blue-blind)

#2C7D88

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #566fb2;
/* rgb */ color: rgb(86, 111, 178);
/* oklch */ color: oklch(55.3% 0.109 267.3);

Tailwind

colors: {
  custom: {
    50: '#8b98c9',
    500: '#566fb2',
    950: '#000000',
  },
}

SCSS

$custom: #566fb2;
$custom-light: #8b98c9;
$custom-dark: #000000;

JSON

{
  "hex": "#566fb2",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 178
  },
  "hsl": {
    "h": 223.696,
    "s": 37.398,
    "l": 51.765
  },
  "oklch": {
    "l": 0.55265,
    "c": 0.10879,
    "h": 267.3
  },
  "luminance": 0.16562
}

Semantic roles & 50–950 ramp

primary

#566FB2

secondary

#C6BB9E

accent

#AE5ACD

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #566FB2

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

Preview Lab → · Contrast checker → · Palette generator →