It has been stated a few times by Ron that he HATES the color maroon.

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> “Every year she makes us a jumper,’ said Ron, unwrapping his own, ‘and mine’s always maroon.” [...] **"I hate maroon,’** Ron moaned half-heartedly as he pulled it over his head.”
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> Harry Potter and the Philosopher's Stone, Chapter 12 (The Mirror of Erised)
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His mother always either makes his clothes in this color, or buys them in this color. His socks, every Christmas sweater she made Ron was maroon. In *Harry Potter and the Goblet of Fire*, the dress robes were also maroon (chapter 10):

> 
> He was just piling underwear into his cauldron when Ron
> made a loud noise of disgust behind him.  
> 
> “What is that supposed to be?”  
> 
> He was holding up something that looked to Harry like a long, maroon velvet dress. It had a moldy-looking lace frill at the collar and matching lace cuffs.  
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> There was a knock on the door, and Mrs. Weasley entered, carrying an armful of freshly laundered Hogwarts robes.  
> 
> “Here you are,” she said, sorting them into two piles. “Now,
> mind you pack them properly so they don’t crease.”  
> 
> “Mum, you’ve given me Ginny’s new dress,” said Ron, handing it out to her.  
> 
> “Of course I haven’t,” said Mrs. Weasley. “That’s for you. Dress robes.”  
> 
> “What?” said Ron, looking horror-struck.  
> 
> “Dress robes!” repeated Mrs. Weasley. “It says on your school list that you’re supposed to have dress robes this year . . . robes for formal occasions.”  
> 
> “You’ve got to be kidding,” said Ron in disbelief. “I’m not wearing that, no way.”
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Why didn't Ron just tell his mom he hates that color? Would he have felt too bad because he knew they didn't have a lot of money, so he accepted what he got then complained to his friends later?