Hex #17637c or rgb(23,99,124) in RGB space is the tint of bluish cian. It has hue angle of 194.85 degrees, value = 49 and saturation = 81. #17637c can be obtained by mixing 4 colors: 1 drop of red, 2 drops of blue, 4 drops of cyan, 4 drops of black.
Nearest safe hex - #006666. Below you can see the block with #17637c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #17637c to the mixer and play with it.