My 16x16 and 8x8 RGB LED matrix proved very helpful to me in biasing the LEDs for different shades of a color hue.
If you need to select tints and shades of a color for an EveryCircuit project, maybe these circuits can help you. Check them out!
RGB LED Strip: https://everycircuit.com/circuit/6420598886236160
8x8 RGB LED Gradient Matrix: https://everycircuit.com/circuit/6411763490488320
16x16 RGB LED Gradient Matrix: https://everycircuit.com/circuit/5039545095290880
Keep creating and have fun.
