Board Game Arena

I was thinking of posting this as a suggestion, but I've searched and can't find anyone else with the same complaint and am wondering whether the problem might possibly be at my end.
Or maybe it's because nobody else cares.

Anyway, my first colour preference is "yellow" but to me it looks orange (albeit a slightly lighter orange than the "orange" option).
I was a little irked by this, but chalked it down to the colour balance and overall design aesthetic of the website.

However, I have recently noticed when playing Rallyman: GT that there is a true yellow available (at least in that game).
Annoyingly, the game gives me the orange-looking "yellow" as a first preference and the one time I got the colour that actually looks yellow is when another player got allocated ahead of me.

Anyway, am I imagining that the default yellow is actually orange?
Is it possibly my browser or monitor settings?
Is this something others have complained about before?

I see that you can customise the website with CSS, but I have no knowledge of how to go about this.
Has anyone made some CSS that addresses this colour discrepancy?

I know this is a petty gripe, especially since it's not like it affects my gameplay, but I have always used yellow as my first preference in games.