Oh, man, I'm green with envy. I'm so angry I'm seeing red. Oh guys, I'm feeling really blue today.
We definitely tend to link colors with emotions and there's been plenty of psychological and social research on how specific colors actually influence our moods and actions.
But, the effects of color aren't written into our DNA. They're set by personal experience. I mean, you could imagine some universal associations between say, a feeling of tranquility and the calm blue of the sky, but for Joe Schmoe, blue might also trigger anger and fear because it reminds him of the jacket on the playground bully.
The cultures we live in also tend to dictate how we read certain colors. Like in the west, we think of white as representing purity and innocence, but in some eastern cultures, it's the color of mourning.
The lack of consensus hasn't stopped advertisers from using those cultural differences to try and influence our buying decisions or office managers from relying on color information theory to increase productivity in the workplace.
Whether these colorful tricks work or not is up for debate.