Hex #66c3b0 or rgb(102,195,176) in RGB space is the tint of greenish cian. It has hue angle of 167.74 degrees, value = 76 and saturation = 48. #66c3b0 can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of cyan, 4 drops of green, 4 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #66c3b0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66c3b0 to the mixer and play with it.