RGB vs HSL COMPARISON
RGB a = 1.0	RGB a = 0.9	RGB a = 0.8	RGB a = 0.7	RGB a = 0.6	RGB a = 0.5	RGB a = 0.4	RGB a = 0.3	RGB a = 0.2	RGB a = 0.1
HSL a = 1.0	HSL a = 0.9	HSL a = 0.8	HSL a = 0.7	HSL a = 0.6	HSL a = 0.5	HSL a = 0.4	HSL a = 0.3	HSL a = 0.2	HSL a = 0.1