Hex #275e69 or rgb(39,94,105) in RGB space is the tint of bluish cian. It has hue angle of 190.00 degrees, value = 41 and saturation = 63. #275e69 can be obtained by mixing 4 colors: 5 drops of blue, 2 drops of green, 2 drops of white, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #275e69 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #275e69 to the mixer and play with it.