Color #404e56 name: very dark desaturated bluish cian
Hex #404e56 or rgb(64,78,86) in RGB space is the tint of bluish cian. It has hue angle of 201.82 degrees, value = 34 and saturation = 26. #404e56 can be obtained by mixing 4 colors: 3 drops of magenta, 3 drops of blue, 4 drops of green, 2 drops of black.
Nearest safe hex - #336666. Below you can see the block with #404e56 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #404e56 to the mixer and play with it.