I got my first blue DC01 and I couldn't stand it, it's alright but the blue looks quite old to me, it reminds me of Mentos as well I'd much rather have a yellow Dc01 Standard TBH, especially as I grew up with a DC01 standard
The first Dyson sky blue- DC01 and DC04- Meh
DC07/DC08 turquoise- Lovely! (especially with purple)
Current Satin chrome blue on the DC41 etc- Bloody amazing, makes the vacuum look lit!
If it's wet it looks even better