Hex #40aec7 or rgb(64,174,199) in RGB space is the tint of bluish cian. It has hue angle of 191.11 degrees, value = 78 and saturation = 68. #40aec7 can be obtained by mixing 4 colors: 2 drops of blue, 5 drops of cyan, 3 drops of white, 2 drops of black.
Nearest safe hex - #3399cc. Below you can see the block with #40aec7 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40aec7 to the mixer and play with it.