Hex #40a8b8 or rgb(64,168,184) in RGB space is the tint of bluish cian. It has hue angle of 188.00 degrees, value = 72 and saturation = 65. #40a8b8 can be obtained by mixing 4 colors: 1 drop of blue, 5 drops of cyan, 3 drops of white, 3 drops of black.
Nearest safe hex - #3399cc. Below you can see the block with #40a8b8 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40a8b8 to the mixer and play with it.