#5666DE#5666DE

#5666DE is a mid, vivid blue. Relative luminance 0.168; OKLCH L 56.3% C 0.182 H 273.4°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#5666DE
RGB	rgb(86, 102, 222)
HSL	hsl(233, 67%, 60%)
HSV	hsv(233, 61%, 87%)
CMYK	cmyk(61.3%, 54.1%, 0%, 12.9%)
CIE-LAB	lab(47.95, 30.28, -63.32)
CIE-LCH	lch(47.95, 70.19, 295.56°)
OKLab	oklab(56.3% 0.0107 -0.1817)
OKLCH	oklch(56.3% 0.182 273.4)
XYZ	xyz(21.7696, 16.7533, 71.1796)
Luminance	0.1676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666DE #DECE56

analogous

#56AADE #5666DE #8A56DE

triadic

#5666DE #DE5666 #66DE56

tetradic

#5666DE #DE56AA #DECE56 #56DE8A

square

#5666DE #DE56AA #DECE56 #56DE8A

split-complementary

#5666DE #DE8A56 #AADE56

monochromatic

#1E2D9B #283CCE #5666DE #8994E8 #BCC3F2

Accessibility & contrast

On white

4.83

#5666DE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#5666DE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666DE

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666DE	#FFFFFF	#000000	##FFFFFF
##5666DE	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E78E2

Deuteranopia (green-blind)

#006CDC

Tritanopia (blue-blind)

#008298

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #5666de;
/* rgb */ color: rgb(86, 102, 222);
/* oklch */ color: oklch(56.3% 0.182 273.4);

Tailwind

colors: {
  custom: {
    50: '#9291e9',
    500: '#5666de',
    950: '#000000',
  },
}

SCSS

$custom: #5666de;
$custom-light: #9291e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5666de",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 222
  },
  "hsl": {
    "h": 232.941,
    "s": 67.327,
    "l": 60.392
  },
  "oklch": {
    "l": 0.56301,
    "c": 0.18205,
    "h": 273.4
  },
  "luminance": 0.16755
}

Semantic roles & 50–950 ramp

primary

#5666DE

secondary

#E2DCAE

accent

#B916CF

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5666DE

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

Preview Lab → · Contrast checker → · Palette generator →