#166DD0 Color

#166DD0 is rgb(22, 109, 208) in RGB and hsl(212, 81%, 45%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#166DD0

HEX#166DD0

RGBrgb(22, 109, 208)

HSLhsl(212, 81%, 45%)

HSVhsv(212, 89%, 82%)

OKLCHoklch(54.3% 0.172 255.8)

CMYKcmyk(89%, 48%, 0%, 18%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #166DD0 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.08:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.13:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #166DD0 based on color wheel relationships. Click any swatch for its full breakdown.

Base#166DD0 Complementary#D07916 Analogous#16CAD0 Analogous#1C16D0 Triadic#D0166D Triadic#6DD016

Tints & Shades

Lighter tints and darker shades of #166DD0, useful for hover states, backgrounds, and text variants.

Tints

#2681E8 #4693EC #6BA9EF #8CBCF3 #B1D1F7 #D1E4FA

Shades

#135EB4 #105098 #0D417D #0B3566 #08274A #05182E

Use #166DD0 in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex