#1666DF Color

#1666DF is rgb(22, 102, 223) in RGB and hsl(216, 82%, 48%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#1666DF

HEX#1666DF

RGBrgb(22, 102, 223)

HSLhsl(216, 82%, 48%)

HSVhsv(216, 90%, 87%)

OKLCHoklch(53.9% 0.199 259.7)

CMYKcmyk(90%, 54%, 0%, 13%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1666DF background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.25:1AA normal ✓AA large ✓AAA normal ✗

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

Color Harmonies

Colors that pair well with #1666DF based on color wheel relationships. Click any swatch for its full breakdown.

Base#1666DF Complementary#DF8E16 Analogous#16CBDF Analogous#2A16DF Triadic#DF1666 Triadic#66DF16

Tints & Shades

Lighter tints and darker shades of #1666DF, useful for hover states, backgrounds, and text variants.

Tints

#2E79EA #4F8EEE #6FA3F1 #94BBF4 #B5D0F8 #D5E4FB

Shades

#135AC3 #104BA2 #0D3E87 #0B316B #08244F #05152E

Use #1666DF in Our Tools

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