Love it! And it is funny because for my IT education company we use red, yellow and orange a lot. For my horses-store.com (which is all about health products for horses) I use orange and green a lot!

Isn’t that funny how intuitively you just know the colours that resonate with your audience?Your illustration gives a bit more science behind the ‘gut feeling’ – thank you again!

@joanmuschampfagnani  I so agree that logo is just one part.  I was thinking more in the lines of using these principles in choosing colors to bring impact to my website, Facebook page, etc.

@ivankamenken  I do think that a lot of this is intuitive for many!  It is similar to the “science” behind paint colors and the feelings they promote.  Seems like your color choices are right in line with the graphic but, like you said, sometimes seeing it all laid out this way makes it really make sense!

My colours are orange and grey. Orange has been one of my favourite colours for a very long time. But before deciding to use it for my logo (and thus also for the rest of my CI) I did some research to ensure it expresses the right things.

And reading from this great infographic, I made the right choice. Orange is a colour full of life and excitement. It expresses vitality, fun, playfulness and exuberance. These are not only good attributes for a marketing agency, but also describe my personality very well.

I took grey as a second colour to stabilize the orange and to add a certain respectability.

@dianebianchi  I am from Pittsburgh too….so there is definitely a special affinity for the Black and Gold!!!  

I have changed my colors every decade — out of boredom and because technology changed. I started my graphic design/communications business in the late 1980s and used mostly black with gold on special occasions. When color printing became more prevalent I used the same design, replacing the black with green and the gold with gray. When four-color became inexpensive, I added more colors. I have not suffered from this. The graphic (a cut paper design) is strong and characteristic and since it is a tree (unspecified deciduous) it is allowed to change colors.

Color trends change every decade or so. I remember shopping for a brown suit a few years ago and brown was just OUT! So not locking into colors is probably OK.

Colors are much more versatile than some color experts would have you believe. Yellow is sunshine and growth. It is also cowardice and illness. There are dichotomous examples for almost every color. Colors accent your message; they don’t tell the whole story.

@kimkline  Love It!  Color is such an important part of site design.

Good article for people born and raised in the US. If you have a taget audience in a different country you have to think different – read this:

http://getinternationalclients.com/the-impact-of-color-and-its-different-associations-in-multicultural-marketing/ 
When I lived in France I gave flowers to a host, only to find that the type flower I gave were only placed on graves. Be careful when you hit a different culture.