I use cubesmith regular, but my sight is slowly getting worse so ill haver to change to Cubesmith full bright, swap the pink to red and yellow to black:
Red or Fluorescent Pink-Florescent Orange, White-Black, Bright Blue-Fluorescent Green maybe
OH MY GOD Cuberkid10 knows what he's talking about heehee. I think that is the best combination for recognition even though I use guhong stickers.....fail (planning on getting the half bright)