Hex #629b8a or rgb(98,155,138) in RGB space is the tint of greenish cian. It has hue angle of 162.11 degrees, value = 61 and saturation = 37. #629b8a can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of magenta, 5 drops of blue, 3 drops of cyan.
Nearest safe hex - #669999. Below you can see the block with #629b8a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #629b8a to the mixer and play with it.