#5666E0#5666E0

#5666E0 is a mid, vivid blue. Relative luminance 0.169; OKLCH L 56.4% C 0.185 H 273.3°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#5666E0
RGB	rgb(86, 102, 224)
HSL	hsl(233, 69%, 61%)
HSV	hsv(233, 62%, 88%)
CMYK	cmyk(61.6%, 54.5%, 0%, 12.2%)
CIE-LAB	lab(48.08, 30.95, -64.23)
CIE-LCH	lch(48.08, 71.30, 295.73°)
OKLab	oklab(56.45% 0.0107 -0.1844)
OKLCH	oklch(56.45% 0.185 273.3)
XYZ	xyz(22.0392, 16.8612, 72.5997)
Luminance	0.1686 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666E0 #E0D056

analogous

#56ABE0 #5666E0 #8B56E0

triadic

#5666E0 #E05666 #66E056

tetradic

#5666E0 #E056AB #E0D056 #56E08B

square

#5666E0 #E056AB #E0D056 #56E08B

split-complementary

#5666E0 #E08B56 #ABE056

monochromatic

#1D2C9F #273AD2 #5666E0 #8A95E9 #BDC4F3

Accessibility & contrast

On white

4.80

#5666E0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#5666E0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666E0

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666E0	#FFFFFF	#000000	##FFFFFF
##5666E0	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0478E4

Deuteranopia (green-blind)

#006CDE

Tritanopia (blue-blind)

#008399

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #5666e0;
/* rgb */ color: rgb(86, 102, 224);
/* oklch */ color: oklch(56.4% 0.185 273.3);

Tailwind

colors: {
  custom: {
    50: '#9291ea',
    500: '#5666e0',
    950: '#000000',
  },
}

SCSS

$custom: #5666e0;
$custom-light: #9291ea;
$custom-dark: #000000;

JSON

{
  "hex": "#5666e0",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 224
  },
  "hsl": {
    "h": 233.043,
    "s": 69,
    "l": 60.784
  },
  "oklch": {
    "l": 0.56447,
    "c": 0.18473,
    "h": 273.3
  },
  "luminance": 0.16863
}

Semantic roles & 50–950 ramp

primary

#5666E0

secondary

#E3DDAF

accent

#BB15D1

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5666E0

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

Preview Lab → · Contrast checker → · Palette generator →