Hex #40acc0 or rgb(64,172,192) in RGB space is the tint of bluish cian. It has hue angle of 189.38 degrees, value = 75 and saturation = 67. #40acc0 can be obtained by mixing 4 colors: 3 drops of blue, 2 drops of cyan, 1 drop of green, 2 drops of white.
Nearest safe hex - #3399cc. Below you can see the block with #40acc0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40acc0 to the mixer and play with it.