Hex #1787ba or rgb(23,135,186) in RGB space is the tint of bluish cian. It has hue angle of 198.77 degrees, value = 73 and saturation = 88. #1787ba can be obtained by mixing 4 colors: 1 drop of magenta, 5 drops of blue, 4 drops of cyan, 1 drop of green.
Nearest safe hex - #0099cc. Below you can see the block with #1787ba color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1787ba to the mixer and play with it.