#5666E8#5666E8

#5666E8 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 57.0% C 0.195 H 273.2°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#5666E8
RGB	rgb(86, 102, 232)
HSL	hsl(233, 76%, 62%)
HSV	hsv(233, 63%, 91%)
CMYK	cmyk(62.9%, 56%, 0%, 9%)
CIE-LAB	lab(48.64, 33.62, -67.84)
CIE-LCH	lch(48.64, 75.72, 296.36°)
OKLab	oklab(57.04% 0.011 -0.195)
OKLCH	oklch(57.04% 0.195 273.2)
XYZ	xyz(23.1498, 17.3054, 78.4486)
Luminance	0.1731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666E8 #E8D856

analogous

#56AFE8 #5666E8 #8F56E8

triadic

#5666E8 #E85666 #66E856

tetradic

#5666E8 #E856AF #E8D856 #56E88F

square

#5666E8 #E856AF #E8D856 #56E88F

split-complementary

#5666E8 #E88F56 #AFE856

monochromatic

#1728AC #2035E1 #5666E8 #8C97EF #C2C8F7

Accessibility & contrast

On white

4.71

#5666E8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#5666E8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666E8

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666E8	#FFFFFF	#000000	##FFFFFF
##5666E8	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AEC

Deuteranopia (green-blind)

#006DE5

Tritanopia (blue-blind)

#00859D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #5666e8;
/* rgb */ color: rgb(86, 102, 232);
/* oklch */ color: oklch(57.0% 0.195 273.2);

Tailwind

colors: {
  custom: {
    50: '#9491f0',
    500: '#5666e8',
    950: '#000000',
  },
}

SCSS

$custom: #5666e8;
$custom-light: #9491f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5666e8",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 232
  },
  "hsl": {
    "h": 233.425,
    "s": 76.042,
    "l": 62.353
  },
  "oklch": {
    "l": 0.5704,
    "c": 0.19535,
    "h": 273.2
  },
  "luminance": 0.17307
}

Semantic roles & 50–950 ramp

primary

#5666E8

secondary

#E8E2B2

accent

#C20DD8

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C17

muted

#7E7D85

Preview Lab

Preview with #5666E8

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

Preview Lab → · Contrast checker → · Palette generator →