Hex #669694 or rgb(102,150,148) in RGB space is the tint of cyan. It has hue angle of 177.50 degrees, value = 59 and saturation = 32. #669694 can be obtained by mixing 4 colors: 4 drops of yellow, 2 drops of magenta, 5 drops of blue, 4 drops of cyan.
Nearest safe hex - #669999. Below you can see the block with #669694 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #669694 to the mixer and play with it.