I'm not an expert in light. But you can do some experiments or read about how the Discus keepers use the different colours lights to enhance the fish colours.
Usually brighter light will look better especially if you have dark background.
But I think you can't make any judgment at the moment as there is no fish and plants in your tank.
The effect will be different when you put fish and plants in it.
Different colours lights will have different effect on the fish, background, etc.
I like blue LED as it enhances my fish colours.
If your fish is darker in colour, you will need brighter light to show off their colours.
I used cheap solutions to change my LED white light.
I wrapped it with blue plastic gift wrapper which I bought for $1-$2.
If you wrap more layers, the light will become dimmer.
You can also combine blue and red by wrapping half the LED length with blue and another half with red wrapper.
Get those transparent plastic gift wrapper that doesn't have any design on it just plain one.
Get either a blue or red. But blue seems to be better.
You don't need a big roll. Just a small roll is more than enough.
But it will better to wait until your fish and plants have arrived before making any changes.
Probably you don't need to make any changes.
Here is how the gift wrapper looked like.
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