Plant colors question

I have a question about the plant colors. I see photos regularly of plants w/awesome purples and reds really beautiful colors and I’m wondering is that plant genetics or can I make them colors pop out??

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Pretty sure it’s genetics, flowering changes everything. But the healthier the plant, the more vibrant the colors!

its in the genetics but you still have to help them come out kinda

Cooler night temperatures during flowering will bring out colors in the genetics. Or, you can just starve your plants by letting the pH swing way too high, like me. P and K deficiencies can be pretty sometimes.