Hex #40b7c5 or rgb(64,183,197) in RGB space is the tint of cyan. It has hue angle of 186.32 degrees, value = 77 and saturation = 68. #40b7c5 can be obtained by mixing 4 colors: 5 drops of blue, 5 drops of cyan, 2 drops of green, 4 drops of white.
Nearest safe hex - #33cccc. Below you can see the block with #40b7c5 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40b7c5 to the mixer and play with it.