Should be fine.

   I see a yellow easel and I want it painted black
   No colors anymore I want them to turn black
   I see my prints roll by to the blix each one flows
   I have to turn my head until the color cast goes

   Hmm, hmm, hmm...

   I wanna see it painted black, painted black
   Black as night, black as coal
   I wanna see the sun, blotted out from the sky
   I wanna see it painted, painted, painted, painted black
   Yeah
                                            Jagger/Richards

After all that I have to confess I have no clue about the
right color of easel for color work.

Yellow easels work fine in color. Remember that the light from the enlarger
must go throught the emulsion, through the paper base, reflect from the
easel, trough the paper base again, before it gets to color the emulsion a
second time. So the effect is not really noticeable.

Once, before thinking about this, I painted an easel flat black. This did
not improve anything, and made it very difficult to find the slots in the
easel that were now red on black (under a safelight for B&W) and quite
hopeless for color. Now I have one-size Saunders easels in 8x10, 11x14, and
16x20, that are yellow, so even if they were black, I could use them. But
there is no point painting them.

Depends on the easel!  I tested this concept years ago with a couple of
yellow easels I had on hand by covering half the easel base with black paper
and printed a negative with good midtones.  Sure enough!  One brand of easel
I had was affected and the other was not.  I could see a shift towards blue
in one half of the print and only in the darker tones (more light reflected
ya know).  Took the easels apart and sprayed the bases with  matt black
Krylon spray paint and have been happy as a clam ever since.  Peace of mind.
It also removes the temptation to compose and focus on the easel without a
sheet of paper, which is also a good thing.