#5666D5#5666D5

#5666D5 is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.7% C 0.170 H 273.4°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#5666D5
RGB	rgb(86, 102, 213)
HSL	hsl(232, 60%, 59%)
HSV	hsv(232, 60%, 84%)
CMYK	cmyk(59.6%, 52.1%, 0%, 16.5%)
CIE-LAB	lab(47.34, 27.28, -59.18)
CIE-LCH	lch(47.34, 65.17, 294.75°)
OKLab	oklab(55.66% 0.0101 -0.1696)
OKLCH	oklch(55.66% 0.17 273.4)
XYZ	xyz(20.5954, 16.2837, 64.9956)
Luminance	0.1628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666D5 #D5C556

analogous

#56A5D5 #5666D5 #8556D5

triadic

#5666D5 #D55666 #66D556

tetradic

#5666D5 #D556A5 #D5C556 #56D585

square

#5666D5 #D556A5 #D5C556 #56D585

split-complementary

#5666D5 #D58556 #A5D556

monochromatic

#23318D #2F41BE #5666D5 #8792E1 #B8BFED

Accessibility & contrast

On white

4.93

#5666D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#5666D5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666D5

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666D5	#FFFFFF	#000000	##FFFFFF
##5666D5	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2476D9

Deuteranopia (green-blind)

#006BD3

Tritanopia (blue-blind)

#008094

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #5666d5;
/* rgb */ color: rgb(86, 102, 213);
/* oklch */ color: oklch(55.7% 0.170 273.4);

Tailwind

colors: {
  custom: {
    50: '#9191e3',
    500: '#5666d5',
    950: '#000000',
  },
}

SCSS

$custom: #5666d5;
$custom-light: #9191e3;
$custom-dark: #000000;

JSON

{
  "hex": "#5666d5",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 213
  },
  "hsl": {
    "h": 232.441,
    "s": 60.19,
    "l": 58.627
  },
  "oklch": {
    "l": 0.55655,
    "c": 0.16986,
    "h": 273.4
  },
  "luminance": 0.16285
}

Semantic roles & 50–950 ramp

primary

#5666D5

secondary

#DDD6AA

accent

#CF44E3

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C15

muted

#7E7D84

Preview Lab

Preview with #5666D5

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

Preview Lab → · Contrast checker → · Palette generator →