Hex #17838b or rgb(23,131,139) in RGB space is the tint of cyan. It has hue angle of 184.14 degrees, value = 55 and saturation = 83. #17838b can be obtained by mixing 3 colors: 5 drops of cyan, 1 drop of white, 5 drops of black.
Nearest safe hex - #009999. Below you can see the block with #17838b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #17838b to the mixer and play with it.