Hex #628097 or rgb(98,128,151) in RGB space is the tint of blue. It has hue angle of 206.04 degrees, value = 59 and saturation = 35. #628097 can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of blue, 3 drops of green, 3 drops of white.
Nearest safe hex - #669999. Below you can see the block with #628097 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #628097 to the mixer and play with it.