Ds1 blue-black at birth, turned chocolate brown within the week, 6y later still chocolate brown.
Dd purpley-blue at birth, didn't change for several months, then turned greyish and gradually settled on an indefinable grey/brown with hints of green at about iy, and haven't changed since.
Ds2 blue-black at birth, by about 3w had turned even darker brown than ds1.
I was born with dark brown eyes.