#3666BA Color

#3666BA is rgb(54, 102, 186) in RGB and hsl(218, 55%, 47%) in HSL. The closest CSS named color is SteelBlue. White text is most readable on this background.

#3666BA

HEX#3666BA

RGBrgb(54, 102, 186)

HSLhsl(218, 55%, 47%)

HSVhsv(218, 71%, 73%)

OKLCHoklch(52.1% 0.142 260.7)

CMYKcmyk(71%, 45%, 0%, 27%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #3666BA background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.58:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text3.77:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #3666BA based on color wheel relationships. Click any swatch for its full breakdown.

Base#3666BA Complementary#BA8936 Analogous#36A8BA Analogous#4836BA Triadic#BA3666 Triadic#66BA36

Tints & Shades

Lighter tints and darker shades of #3666BA, useful for hover states, backgrounds, and text variants.

Tints

#4978CA #6990D3 #84A4DB #A0B9E3 #BCCDEB #DBE5F5

Shades

#2F59A2 #284C8A #213F73 #193057 #12233F #0B1628

Use #3666BA in Our Tools

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