Hex #b3644d or rgb(179,100,77) in RGB space is the tint of orange red. It has hue angle of 13.53 degrees, value = 70 and saturation = 57. #b3644d can be obtained by mixing 4 colors: 1 drop of yellow, 3 drops of red, 3 drops of white, 3 drops of black.
Nearest safe hex - #cc6666. Below you can see the block with #b3644d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #b3644d to the mixer and play with it.