How to change RGB decimal values to standard values and how to enter a hex code

Hello all,

Does anyone know how to change the default of my RGB sliders from decimals to standard values? Also, does anyone know why I may be missing the option to insert a Hex code below the sliders? I see on anyone else's interface that they have this feature. Thank you so much for your help! I've been trying to solve these two things for quite some time and can't for the life of me.