Hex #335a66 or rgb(51,90,102) in RGB space is the tint of bluish cian. It has hue angle of 194.12 degrees, value = 40 and saturation = 50. #335a66 can be obtained by mixing 4 colors: 3 drops of blue, 1 drop of green, 2 drops of white, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #335a66 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #335a66 to the mixer and play with it.