Hex #669ea2 or rgb(102,158,162) in RGB space is the tint of cyan. It has hue angle of 184.00 degrees, value = 64 and saturation = 37. #669ea2 can be obtained by mixing 4 colors: 2 drops of yellow, 5 drops of blue, 1 drop of cyan, 2 drops of white.
Nearest safe hex - #669999. Below you can see the block with #669ea2 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #669ea2 to the mixer and play with it.