Glossing systems tend to go for the longest match, and since there are thousands of gloss requests each day I don't want to send them to the wrong entries.
That said, I see I have glossing problems with other XXカラー terms, e.g. ブラックカラー is bringing up the "black calla" lily. Since I have to do some XXカラー fixes I may as well handle ピンクカラー at the same time.

But how likely is it someone would actually look up the meaning of the two words ピンクカラー together when looking at them in a context when it's a reference to pink color rather than pink collar? I have a hard time imagining an actual scenario where having this entry ends up helping anyone.

I certainly don't think we need entries for レッドカラー, オレンジカラー, etc. as they are quite unambiguous. ピンクカラー is an exception, thanks to the カラー being in three different entries. I think we owe it to users not to give a single quite misleading gloss if they look up the katakana I quoted.

I also don't think we should side-step our "split-on-etymology" policy on this.

ブラックカラー	48633
ピンクカラー	32323	
オレンジカラー	21528
グリーンカラー	17419	
イエローカラー	13181
レッドカラー	19614

I'm not really convinced this needs to be an entry.