These numbers represent color codes in the RGB color model. The first set (70-10-50-0) could be an RGB color where 70 is the red component, 10 is the green component, 50 is the blue component, and 0 is the alpha (transparency) value. The second set (66-170-145) might be another RGB color with 66 as red, 170 as green, and 145 as blue. In web design and digital graphics, these codes are used to specify the color of elements on a screen.