My understanding is that most anemones get their color from the zooxanthella inside them. Stressed, unhealthy, and dying anemones may expel their zooxanthella leading them to look bleached/pale/colorless.
This is a great example with pictures of a bleached anemone that colors up when it gets its zooxanthella back:
https://www.reef2reef.com/threads/zooxanthellae-transplant-for-bleached-anemones.758507/
The one exception to this that I have seen is Condy anemones that I believe are naturally pale with pink/purple dots on the tips of their tentacles.
This looks like what you have so I'm not too concerned about bleaching on it. It looks healthy in the picture with the clownfish.
The main thing I can think of to keep an eye on is if it shrivels up and doesn't retract its tentacles. It's normal for an anemone to shrink (mine do every evening) and even close from time to time. The main difference between healthy and unhealthy is that a healthy anemone will pull its tentacles at least mostly inside and look more like a ball.
An unhealthy anemone will just look like someone deflated it but it's all still out and flowing in the water. Keep in mind, if this happens once I would not be concerned, it's more of an issue if it's happening repeatedly.