Hex #40cdbf or rgb(64,205,191) in RGB space is the tint of cyan. It has hue angle of 174.04 degrees, value = 80 and saturation = 69. #40cdbf can be obtained by mixing 4 colors: 4 drops of cyan, 1 drop of green, 2 drops of white, 1 drop of black.
Nearest safe hex - #33cccc. Below you can see the block with #40cdbf color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40cdbf to the mixer and play with it.