Hex #007877 or rgb(0,120,119) in RGB space is the tint of cyan. It has hue angle of 179.50 degrees, value = 47 and saturation = 100. #007877 can be obtained by mixing 4 colors: 1 drop of blue, 4 drops of cyan, 1 drop of green, 4 drops of black.
Nearest safe hex - #006666. Below you can see the block with #007877 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #007877 to the mixer and play with it.