Hex #242f3d or rgb(36,47,61) in RGB space is the tint of blue. It has hue angle of 213.60 degrees, value = 24 and saturation = 41. #242f3d can be obtained by mixing 3 colors: 1 drop of blue, 1 drop of white, 5 drops of black.
Nearest safe hex - #333333. Below you can see the block with #242f3d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #242f3d to the mixer and play with it.