#5666AA#5666AA

#5666AA is a mid, moderate blue. Relative luminance 0.144; OKLCH L 52.9% C 0.109 H 272.2°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#5666AA
RGB	rgb(86, 102, 170)
HSL	hsl(229, 33%, 50%)
HSV	hsv(229, 49%, 67%)
CMYK	cmyk(49.4%, 40%, 0%, 33.3%)
CIE-LAB	lab(44.78, 13.20, -38.41)
CIE-LCH	lch(44.78, 40.61, 288.97°)
OKLab	oklab(52.88% 0.0042 -0.1086)
OKLCH	oklch(52.88% 0.109 272.2)
XYZ	xyz(15.8425, 14.3825, 39.9637)
Luminance	0.1438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5666AA #AA9A56

analogous

#5690AA #5666AA #7056AA

triadic

#5666AA #AA5666 #66AA56

tetradic

#5666AA #AA5690 #AA9A56 #56AA70

square

#5666AA #AA5690 #AA9A56 #56AA70

split-complementary

#5666AA #AA7056 #90AA56

monochromatic

#2D3559 #414D82 #5666AA #7F8BBE #A7B0D3

Accessibility & contrast

On white

5.42

#5666AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#5666AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5666AA

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5666AA	#FFFFFF	#000000	##FFFFFF
##5666AA	1.00	5.42	3.88	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C6EAD

Deuteranopia (green-blind)

#4367A8

Tritanopia (blue-blind)

#347480

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5666aa;
/* rgb */ color: rgb(86, 102, 170);
/* oklch */ color: oklch(52.9% 0.109 272.2);

Tailwind

colors: {
  custom: {
    50: '#8b91c3',
    500: '#5666aa',
    950: '#000000',
  },
}

SCSS

$custom: #5666aa;
$custom-light: #8b91c3;
$custom-dark: #000000;

JSON

{
  "hex": "#5666aa",
  "rgb": {
    "r": 86,
    "g": 102,
    "b": 170
  },
  "hsl": {
    "h": 228.571,
    "s": 33.071,
    "l": 50.196
  },
  "oklch": {
    "l": 0.52875,
    "c": 0.10866,
    "h": 272.2
  },
  "luminance": 0.14383
}

Semantic roles & 50–950 ramp

primary

#5666AA

secondary

#C1BA9B

accent

#B55FC9

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C12

muted

#7D7D81

Preview Lab

Preview with #5666AA

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

Preview Lab → · Contrast checker → · Palette generator →