Hex #275976 or rgb(39,89,118) in RGB space is the tint of bluish cian. It has hue angle of 202.03 degrees, value = 46 and saturation = 67. #275976 can be obtained by mixing 4 colors: 2 drops of red, 3 drops of blue, 4 drops of cyan, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #275976 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #275976 to the mixer and play with it.