Color temperature of a light has nothing to do with the use of a dimmer that reduces the lumen output of the light. Not related at all.

ok I was hoping I could set it between 3500 and 4000

Buy the programmable light bulbs thst let you change the K level.

AND the dimmers.

Brightness has to do with lumens. Color temperature has to do with Kelvins.

If you want it bright, buy bulbs with higher lumen output or add more cans (or both, depending on the specific situation).

I think it's misleading when people say 3000K is "too yellow". Yes it's yellow-er than 3500K or 4000K, and for some people it is too warm, but it's not YELLOW for Pete's sake -- that would be 2700K or lower.

But yes, buy the cans that let you change the K and decide for yourself which setting you like.