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#566581

a dark, soft blue · cool · closest name: steelblue

RGB
86, 101, 129
HSL
219°, 20%, 42%
CMYK
33, 22, 0, 49
Luminance
0.1287

Every format

HEX#566581
RGBrgb(86, 101, 129)
HSLhsl(219, 20%, 42%)
CMYKcmyk(33%, 22%, 0%, 49%)
LABlab(42.6 1.5 -17.4)
LCHlch(42.6 17.5 274.9)
OKLCHoklch(0.505 0.049 262.7)

Copy-ready code

/* CSS */
color: #566581;
background-color: #566581;
/* Tailwind (arbitrary) */
class="text-[#566581] bg-[#566581]"
/* SCSS */
$brand: #566581;
/* SwiftUI */
Color(red: 0.337, green: 0.396, blue: 0.506)
/* Android */
Color.parseColor("#566581")

Accessibility — WCAG contrast

Aa
#566581 on white: 5.88:1
AA ✓ pass · AA-large · AAA
Aa
#566581 on black: 3.57:1
AA ✗ fail · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red33.7%
Green39.6%
Blue50.6%

CMYK percentages

Cyan33.3%
Magenta21.7%
Yellow0.0%
Key (black)49.4%

Color previews

#566581 text on a black background

contrast 3.57:1

Card sample

#566581 text on a white background

contrast 5.88:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #566581;
Background color
Panel with #566581 background
background-color: #566581;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #566581;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(86, 101, 129, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(86, 101, 129, 0.45);
Border & gradient
Gradient panel
border: 3px solid #566581;
background: linear-gradient(135deg, #566581, #645681);

Monochromatic scale

Palettes built from #566581

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #566581 in the Color Lab