What color do you picture the cold to be and WHY?

Blue..I remember ice caves in Washington state. The blue sky would make the ice blue. Blue has always been a 'cold color' for me, and think it's universally accepted as a 'cold color'.

A shade of pale blue because it always is when its cold.

silver shards
just because

Blue.. because

Gray

Common cold? A mix of greens and yellows. That's kinda what comes out after time.

a greyish bluish colour because that's what it looks like often when it's cold

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which one looks cold vs which one looks warm?

White, like snow and frost.