Hex #999abc or rgb(153,154,188) in RGB space is the tint of violet. It has hue angle of 238.29 degrees, value = 74 and saturation = 19. #999abc can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of magenta, 4 drops of blue, 4 drops of white.
Nearest safe hex - #9999cc. Below you can see the block with #999abc color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #999abc to the mixer and play with it.