Phalenopsis spike is dark. Concern?

[Dimples]

I have phals that have very dark flower spikes. My harlequin (white flower with dark purple spots) grows spikes that start a dark purple and age to an even darker purple-black. Three others, that all have darker flowers in their genetics, grow very dark green spikes that age/mature to a purple-green. Up close the spikes look like a dark purple-brown background with tons of itty bitty green flecks, giving it a dark appearance from a distance. So long as the spikes don’t feel soft or mushy, I’d assume it’s normal.

I’ve also noticed spikes that darken as they age can sometimes retain lighter areas underneath support clips or anywhere light has been blocked.