I created an Excel table with colors and their RGB values, the job took about 4 hours, 48 hue levels and 16 lighting levels.
The purpose in my case is to make easier to design various stuff in AutoCAD with gradients of colors, example Squares Tower Block, but it can be useful for Photoshop or any project that involve working with colors. I offer it here for free download.
First time I made such table was in 2004 (15 years old) when I spent few days making in Paint an image with 48 hue levels and 32 lighting levels (Excel 97-2003 was limited to 56 colors). I remade it now in Excel 2010 with RGB values for easier use.
Download table: Excel-colors-with-RGB-values.xlsx