#5666DB#5666DB

#5666DB is a mid, vivid blue. Relative luminance 0.166; OKLCH L 56.1% C 0.178 H 273.4°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#5666DB
RGB	rgb(86, 102, 219)
HSL	hsl(233, 65%, 60%)
HSV	hsv(233, 61%, 86%)
CMYK	cmyk(60.7%, 53.4%, 0%, 14.1%)
CIE-LAB	lab(47.74, 29.28, -61.95)
CIE-LCH	lch(47.74, 68.52, 295.30°)
OKLab	oklab(56.08% 0.0105 -0.1777)
OKLCH	oklch(56.08% 0.178 273.4)
XYZ	xyz(21.3711, 16.5939, 69.0808)
Luminance	0.1660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666DB #DBCB56

analogous

#56A9DB #5666DB #8956DB

triadic

#5666DB #DB5666 #66DB56

tetradic

#5666DB #DB56A9 #DBCB56 #56DB89

square

#5666DB #DB56A9 #DBCB56 #56DB89

split-complementary

#5666DB #DB8956 #A9DB56

monochromatic

#202E97 #2B3EC9 #5666DB #8894E6 #BBC1F0

Accessibility & contrast

On white

4.86

#5666DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#5666DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666DB

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666DB	#FFFFFF	#000000	##FFFFFF
##5666DB	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1877DF

Deuteranopia (green-blind)

#006CD9

Tritanopia (blue-blind)

#008197

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5666db;
/* rgb */ color: rgb(86, 102, 219);
/* oklch */ color: oklch(56.1% 0.178 273.4);

Tailwind

colors: {
  custom: {
    50: '#9291e7',
    500: '#5666db',
    950: '#000000',
  },
}

SCSS

$custom: #5666db;
$custom-light: #9291e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5666db",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 219
  },
  "hsl": {
    "h": 232.782,
    "s": 64.878,
    "l": 59.804
  },
  "oklch": {
    "l": 0.56083,
    "c": 0.17801,
    "h": 273.4
  },
  "luminance": 0.16596
}

Semantic roles & 50–950 ramp

primary

#5666DB

secondary

#E0DAAD

accent

#D440E8

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5666DB

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

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