#5566CD#5566CD

#5566CD is a mid, vivid blue. Relative luminance 0.158; OKLCH L 55.0% C 0.159 H 273.0°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#5566CD
RGB	rgb(85, 102, 205)
HSL	hsl(232, 55%, 57%)
HSV	hsv(232, 59%, 80%)
CMYK	cmyk(58.5%, 50.2%, 0%, 19.6%)
CIE-LAB	lab(46.76, 24.43, -55.55)
CIE-LCH	lch(46.76, 60.68, 293.74°)
OKLab	oklab(55.04% 0.0084 -0.1589)
OKLCH	oklch(55.04% 0.159 273)
XYZ	xyz(19.5135, 15.8403, 59.7750)
Luminance	0.1584 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5566CD #CDBC55

analogous

#55A2CD #5566CD #8055CD

triadic

#5566CD #CD5566 #66CD55

tetradic

#5566CD #CD55A2 #CDBC55 #55CD80

square

#5566CD #CD55A2 #CDBC55 #55CD80

split-complementary

#5566CD #CD8055 #A2CD55

monochromatic

#263382 #3446B1 #5566CD #8491DB #B4BBE9

Accessibility & contrast

On white

5.04

#5566CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#5566CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5566CD

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5566CD	#FFFFFF	#000000	##FFFFFF
##5566CD	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F74D1

Deuteranopia (green-blind)

#176ACB

Tritanopia (blue-blind)

#007D90

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #5566cd;
/* rgb */ color: rgb(85, 102, 205);
/* oklch */ color: oklch(55.0% 0.159 273.0);

Tailwind

colors: {
  custom: {
    50: '#8f91dd',
    500: '#5566cd',
    950: '#000000',
  },
}

SCSS

$custom: #5566cd;
$custom-light: #8f91dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5566cd",
  "rgb": {
    "r": 85,
    "g": 102,
    "b": 205
  },
  "hsl": {
    "h": 231.5,
    "s": 54.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.55036,
    "c": 0.15911,
    "h": 273
  },
  "luminance": 0.15842
}

Semantic roles & 50–950 ramp

primary

#5566CD

secondary

#D7D0A6

accent

#C94ADE

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #5566CD

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

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