#166FD4 Color

#166FD4 is rgb(22, 111, 212) in RGB and hsl(212, 81%, 46%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#166FD4

HEX#166FD4

RGBrgb(22, 111, 212)

HSLhsl(212, 81%, 46%)

HSVhsv(212, 90%, 83%)

OKLCHoklch(55% 0.174 255.8)

CMYKcmyk(90%, 48%, 0%, 17%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #166FD4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.93:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.26:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #166FD4 based on color wheel relationships. Click any swatch for its full breakdown.

Base#166FD4 Complementary#D47C16 Analogous#16CED4 Analogous#1D16D4 Triadic#D4166F Triadic#6FD416

Tints & Shades

Lighter tints and darker shades of #166FD4, useful for hover states, backgrounds, and text variants.

Tints

#2681E8 #4B96EC #6BA9EF #90BEF3 #B1D1F7 #D5E7FB

Shades

#1360B9 #10529D #0E4481 #0B3566 #08274A #05182E

Use #166FD4 in Our Tools

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