Hex #278869 or rgb(39,136,105) in RGB space is the tint of greenish cian. It has hue angle of 160.82 degrees, value = 53 and saturation = 71. #278869 can be obtained by mixing 4 colors: 5 drops of blue, 5 drops of green, 2 drops of white, 1 drop of black.
Nearest safe hex - #339966. Below you can see the block with #278869 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #278869 to the mixer and play with it.