I should add that there are 2 lights and the pool is pretty much half deep - half shallow. One light is on the deep end aiming down the 40' span and one on the shallow end aiming down the 24' span - if that makes any sense...not sure how to describe. Thanks

Can any of the pool pros help me with this please? much appreciated. Thanks

Not a pool pro but I have a dark pebble tech finish on my pool and have the color led lights and we love them. I have never seen them in a lighter pool finish so I cannot really tell. Compared to the regular lights we had before they are not as bright but do provide enough light at night. Hope this helps.

I prefer Intellibrite lights from Pentair.

As you know, the darker the finish the less the colors will show up.
However, below are two pictures of a Turtle Bay Pebble Sheen pool (very dark finish) with a pool size intellibrite light and a spa size intellibrite light.
We place the larger light in the main body, and the smaller light in the skinny swim lane wing of the pool. All the colors really pop with the 2 lights.