As a member of the sartorial brotherhood you should be made aware of the options you have to solve this problem. Some are simple and others require more time, work, or effort. Here is a picture essay on a few options
With Side Vents and Club Colors
Obnoxiously bright Colored Cloth
On a boat with self colored buttons
Accessorize with a Skimmer and a bow tie
Taping for the Club look
Wear it with University Stripes or get it in a different colored cloth
Bright Club Colors
So, do you still want to wear the blazer you've had for a while. Okay get out there and have some fun. A word of advice; don't use club patches, colored jackets, or any special insignia unless you are affiliated legitimately. It could lead to a terrible offense that could have been easily avoided.
The blazer can be made in several options and we should get creative and customize blazers so, that we will not all be wearing the same blazer.
Photo Credit: This one's all over the place. I also can't remember so, if they are yours and you want them pulled down contact me at orange gentleman at gmail dot com.