About the ColorSource Array options - Original vs. Deep Blue Original ColorSource fixtures use an RGB-L array where the ‘B’ represents the use of blue LEDs. ColorSource Deep Blue replaces those blue LEDs with a deeper ‘Royal Blue’ (indigo) LED. How does this impact your color mixing? Please reference the color chart below. Original ColorSource fixtures can reach any color within the dark shaded triangle while the ColorSource Deep Blue fixtures can reach any color within the light shaded triangle. While much of these areas overlap, there is a portion of each range that can only be reached by the respective color arrays (A=Original, B=Deep Blue).