Hex #4ea897 or rgb(78,168,151) in RGB space is the tint of greenish cian. It has hue angle of 168.67 degrees, value = 66 and saturation = 54. #4ea897 can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of red, 4 drops of blue, 5 drops of cyan.
Nearest safe hex - #669999. Below you can see the block with #4ea897 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4ea897 to the mixer and play with it.