#5666DC#5666DC

#5666DC is a mid, vivid blue. Relative luminance 0.166; OKLCH L 56.2% C 0.179 H 273.4°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#5666DC
RGB	rgb(86, 102, 220)
HSL	hsl(233, 66%, 60%)
HSV	hsv(233, 61%, 86%)
CMYK	cmyk(60.9%, 53.6%, 0%, 13.7%)
CIE-LAB	lab(47.81, 29.62, -62.41)
CIE-LCH	lch(47.81, 69.08, 295.39°)
OKLab	oklab(56.16% 0.0106 -0.179)
OKLCH	oklch(56.16% 0.179 273.4)
XYZ	xyz(21.5031, 16.6467, 69.7763)
Luminance	0.1665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666DC #DCCC56

analogous

#56A9DC #5666DC #8956DC

triadic

#5666DC #DC5666 #66DC56

tetradic

#5666DC #DC56A9 #DCCC56 #56DC89

square

#5666DC #DC56A9 #DCCC56 #56DC89

split-complementary

#5666DC #DC8956 #A9DC56

monochromatic

#202E98 #2A3DCB #5666DC #8994E6 #BBC2F1

Accessibility & contrast

On white

4.85

#5666DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#5666DC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666DC

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666DC	#FFFFFF	#000000	##FFFFFF
##5666DC	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1577E0

Deuteranopia (green-blind)

#006CDA

Tritanopia (blue-blind)

#008297

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5666dc;
/* rgb */ color: rgb(86, 102, 220);
/* oklch */ color: oklch(56.2% 0.179 273.4);

Tailwind

colors: {
  custom: {
    50: '#9291e8',
    500: '#5666dc',
    950: '#000000',
  },
}

SCSS

$custom: #5666dc;
$custom-light: #9291e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5666dc",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 220
  },
  "hsl": {
    "h": 232.836,
    "s": 65.686,
    "l": 60
  },
  "oklch": {
    "l": 0.56155,
    "c": 0.17936,
    "h": 273.4
  },
  "luminance": 0.16648
}

Semantic roles & 50–950 ramp

primary

#5666DC

secondary

#E1DBAD

accent

#D43FE9

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5666DC

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

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