#3F51BC
Closest to "royalblue" · rgb(63, 81, 188)
Color codes
Shades & tints
About #3F51BC
#3F51BC is a color with red 63, green 81 and blue 188 (on a 0–255 scale). In HSL it sits at a hue of 231°, 50% saturation and 49% lightness. For print, its CMYK breakdown is cmyk(66%, 57%, 0%, 26%). The closest named CSS color is royalblue. Use the swatches above to step through lighter tints and darker shades — each opens its own page with full codes you can copy in one click.