Hex #40858b or rgb(64,133,139) in RGB space is the tint of cyan. It has hue angle of 184.80 degrees, value = 55 and saturation = 54. #40858b can be obtained by mixing 3 colors: 2 drops of yellow, 5 drops of blue, 1 drop of cyan.
Nearest safe hex - #339999. Below you can see the block with #40858b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40858b to the mixer and play with it.