#5666DA#5666DA

#5666DA is a mid, vivid blue. Relative luminance 0.165; OKLCH L 56.0% C 0.177 H 273.4°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#5666DA
RGB	rgb(86, 102, 218)
HSL	hsl(233, 64%, 60%)
HSV	hsv(233, 61%, 85%)
CMYK	cmyk(60.6%, 53.2%, 0%, 14.5%)
CIE-LAB	lab(47.68, 28.95, -61.49)
CIE-LCH	lch(47.68, 67.97, 295.21°)
OKLab	oklab(56.01% 0.0104 -0.1763)
OKLCH	oklch(56.01% 0.177 273.4)
XYZ	xyz(21.2398, 16.5414, 68.3896)
Luminance	0.1654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666DA #DACA56

analogous

#56A8DA #5666DA #8856DA

triadic

#5666DA #DA5666 #66DA56

tetradic

#5666DA #DA56A8 #DACA56 #56DA88

square

#5666DA #DA56A8 #DACA56 #56DA88

split-complementary

#5666DA #DA8856 #A8DA56

monochromatic

#212F95 #2C3EC7 #5666DA #8893E5 #BAC1F0

Accessibility & contrast

On white

4.87

#5666DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#5666DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666DA

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666DA	#FFFFFF	#000000	##FFFFFF
##5666DA	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A77DE

Deuteranopia (green-blind)

#006CD8

Tritanopia (blue-blind)

#008196

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5666da;
/* rgb */ color: rgb(86, 102, 218);
/* oklch */ color: oklch(56.0% 0.177 273.4);

Tailwind

colors: {
  custom: {
    50: '#9191e6',
    500: '#5666da',
    950: '#000000',
  },
}

SCSS

$custom: #5666da;
$custom-light: #9191e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5666da",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 218
  },
  "hsl": {
    "h": 232.727,
    "s": 64.078,
    "l": 59.608
  },
  "oklch": {
    "l": 0.56011,
    "c": 0.17666,
    "h": 273.4
  },
  "luminance": 0.16543
}

Semantic roles & 50–950 ramp

primary

#5666DA

secondary

#E0D9AC

accent

#D341E7

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5666DA

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

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