Hex #40d2bf or rgb(64,210,191) in RGB space is the tint of greenish cian. It has hue angle of 172.19 degrees, value = 82 and saturation = 70. #40d2bf can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of cyan, 1 drop of white, 1 drop of black.
Nearest safe hex - #33cccc. Below you can see the block with #40d2bf color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40d2bf to the mixer and play with it.