#5566BD#5566BD

#5566BD is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.0% C 0.137 H 272.7°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#5566BD
RGB	rgb(85, 102, 189)
HSL	hsl(230, 44%, 54%)
HSV	hsv(230, 55%, 74%)
CMYK	cmyk(55%, 46%, 0%, 25.9%)
CIE-LAB	lab(45.78, 19.13, -47.90)
CIE-LCH	lch(45.78, 51.58, 291.76°)
OKLab	oklab(53.97% 0.0065 -0.1364)
OKLCH	oklch(53.97% 0.137 272.7)
XYZ	xyz(17.6800, 15.1069, 50.1185)
Luminance	0.1511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5566BD #BDAC55

analogous

#559ABD #5566BD #7855BD

triadic

#5566BD #BD5566 #66BD55

tetradic

#5566BD #BD559A #BDAC55 #55BD78

square

#5566BD #BD559A #BDAC55 #55BD78

split-complementary

#5566BD #BD7855 #9ABD55

monochromatic

#2A356D #3C4B99 #5566BD #818ECE #ADB5DF

Accessibility & contrast

On white

5.22

#5566BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#5566BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5566BD

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5566BD	#FFFFFF	#000000	##FFFFFF
##5566BD	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F71C0

Deuteranopia (green-blind)

#3268BB

Tritanopia (blue-blind)

#1E7988

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #5566bd;
/* rgb */ color: rgb(85, 102, 189);
/* oklch */ color: oklch(54.0% 0.137 272.7);

Tailwind

colors: {
  custom: {
    50: '#8c91d1',
    500: '#5566bd',
    950: '#000000',
  },
}

SCSS

$custom: #5566bd;
$custom-light: #8c91d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5566bd",
  "rgb": {
    "r": 85,
    "g": 102,
    "b": 189
  },
  "hsl": {
    "h": 230.192,
    "s": 44.068,
    "l": 53.725
  },
  "oklch": {
    "l": 0.53973,
    "c": 0.13657,
    "h": 272.7
  },
  "luminance": 0.15108
}

Semantic roles & 50–950 ramp

primary

#5566BD

secondary

#CDC6A1

accent

#BF54D4

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0C14

muted

#7E7D82

Preview Lab

Preview with #5566BD

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

Preview Lab → · Contrast checker → · Palette generator →