Hex #99c5dd or rgb(153,197,221) in RGB space is the tint of bluish cian. It has hue angle of 201.18 degrees, value = 87 and saturation = 31. #99c5dd can be obtained by mixing 4 colors: 1 drop of red, 1 drop of magenta, 4 drops of cyan, 4 drops of white.
Nearest safe hex - #99cccc. Below you can see the block with #99c5dd color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99c5dd to the mixer and play with it.