#166CD4 Color

#166CD4 is rgb(22, 108, 212) in RGB and hsl(213, 81%, 46%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#166CD4

HEX#166CD4

RGBrgb(22, 108, 212)

HSLhsl(213, 81%, 46%)

HSVhsv(213, 90%, 83%)

OKLCHoklch(54.3% 0.178 256.8)

CMYKcmyk(90%, 49%, 0%, 17%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #166CD4 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 #166CD4 based on color wheel relationships. Click any swatch for its full breakdown.

Base#166CD4 Complementary#D47F16 Analogous#16CBD4 Analogous#2016D4 Triadic#D4166C Triadic#6CD416

Tints & Shades

Lighter tints and darker shades of #166CD4, useful for hover states, backgrounds, and text variants.

Tints

#267DE8 #4B93EC #6BA7EF #90BDF3 #B1D0F7 #D5E6FB

Shades

#135EB9 #10509D #0E4281 #0B3466 #08254A #05172E

Use #166CD4 in Our Tools

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