Phalenopsis spike is dark. Concern?

[c123anderson]

Hi everyone and thank you in advance for your help. You've been helpful as I've dove into my journey of orchids.

I have a phalenopsis that has bloomed and has some lovely flowers on it. It seems healthy and happy, but it's got a dark purple-ish spike. It and another I have in spike both have purple-ish spikes, though the second's spikes are green and purple. Is this common? I was noticing this as I was documenting the spike this morning. (Ignore my bad photography below.)

Phal. with blooms is from Westerlay orchids, and it had been dyed (pretty blue but looked wrong. Husband tried.). The second was a Lowe's rescue with nothing but a shriveled spike. As far as genus, I believe they're just phalenopsis; I have no other information (Westerlay had no plant marker, and the Lowe's orchid had a marker that was "Phalenopsis".)

Here's why I ask: I am afraid that the spike color is indicative of a problem with the plants. I don't have much history to base my concern on or to diagnose issues. I do have my dendrobium spectabile with green spikes, but I think that's not a great comparison.

Here's some images.