Hex #629c8a or rgb(98,156,138) in RGB space is the tint of greenish cian. It has hue angle of 161.38 degrees, value = 61 and saturation = 37. #629c8a can be obtained by mixing 4 colors: 3 drops of blue, 3 drops of green, 5 drops of white, 2 drops of black.
Nearest safe hex - #669999. Below you can see the block with #629c8a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #629c8a to the mixer and play with it.