#5666BD#5666BD

#5666BD is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.0% C 0.136 H 273.2°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#5666BD
RGB	rgb(86, 102, 189)
HSL	hsl(231, 44%, 54%)
HSV	hsv(231, 54%, 74%)
CMYK	cmyk(54.5%, 46%, 0%, 25.9%)
CIE-LAB	lab(45.84, 19.34, -47.80)
CIE-LCH	lch(45.84, 51.56, 292.03°)
OKLab	oklab(54.04% 0.0076 -0.1361)
OKLCH	oklch(54.04% 0.136 273.2)
XYZ	xyz(17.7715, 15.1541, 50.1228)
Luminance	0.1515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666BD #BDAD56

analogous

#569ABD #5666BD #7A56BD

triadic

#5666BD #BD5666 #66BD56

tetradic

#5666BD #BD569A #BDAD56 #56BD7A

square

#5666BD #BD569A #BDAD56 #56BD7A

split-complementary

#5666BD #BD7A56 #9ABD56

monochromatic

#2B356E #3C4B9A #5666BD #828ECE #AEB6DF

Accessibility & contrast

On white

5.21

#5666BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#5666BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666BD

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666BD	#FFFFFF	#000000	##FFFFFF
##5666BD	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F71C0

Deuteranopia (green-blind)

#3368BB

Tritanopia (blue-blind)

#227988

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #5666bd;
/* rgb */ color: rgb(86, 102, 189);
/* oklch */ color: oklch(54.0% 0.136 273.2);

Tailwind

colors: {
  custom: {
    50: '#8d91d1',
    500: '#5666bd',
    950: '#000000',
  },
}

SCSS

$custom: #5666bd;
$custom-light: #8d91d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5666bd",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 189
  },
  "hsl": {
    "h": 230.68,
    "s": 43.83,
    "l": 53.922
  },
  "oklch": {
    "l": 0.54038,
    "c": 0.1363,
    "h": 273.2
  },
  "luminance": 0.15155
}

Semantic roles & 50–950 ramp

primary

#5666BD

secondary

#CDC7A1

accent

#C054D4

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0C14

muted

#7E7D82

Preview Lab

Preview with #5666BD

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

Preview Lab → · Contrast checker → · Palette generator →