Hex #407c75 or rgb(64,124,117) in RGB space is the tint of cyan. It has hue angle of 173.00 degrees, value = 49 and saturation = 48. #407c75 can be obtained by mixing 4 colors: 2 drops of yellow, 4 drops of blue, 1 drop of cyan, 1 drop of black.
Nearest safe hex - #336666. Below you can see the block with #407c75 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #407c75 to the mixer and play with it.