#3F66CF Color

#3F66CF is rgb(63, 102, 207) in RGB and hsl(224, 60%, 53%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#3F66CF

HEX#3F66CF

RGBrgb(63, 102, 207)

HSLhsl(224, 60%, 53%)

HSVhsv(224, 70%, 81%)

OKLCHoklch(54% 0.168 265.7)

CMYKcmyk(70%, 51%, 0%, 19%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #3F66CF background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.23:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.01:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #3F66CF based on color wheel relationships. Click any swatch for its full breakdown.

Base#3F66CF Complementary#CFA93F Analogous#3FAECF Analogous#613FCF Triadic#CF3F66 Triadic#66CF3F

Tints & Shades

Lighter tints and darker shades of #3F66CF, useful for hover states, backgrounds, and text variants.

Tints

#5879D5 #7490DC #8DA4E2 #A9BAEA #C2CEF0 #DEE5F7

Shades

#2F54BC #28489F #213B83 #192E66 #122149 #0B142D

Use #3F66CF in Our Tools

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