Even your wardrobe can be a part of your brand

Your company's visual brand includes your graphic designs - your logo, business card, brochure, and website - but it also includes all of the visual elements that your clients see.

• Your clothes. Especially those clothes in your head shot.
• Your hairstyle.
• Makeup.
• The interior design of your office, if you have clients and vendors over for meetings.
• The kind of car that you drive.

I'm not saying that you should go crazy trying to impress clients with these elements, but do make sure that the appearance of these elements aligns with your brand message. 

You may also consider matching your clothes to your brand colors for greater visual reinforcement (though this isn't required, and you should make sure that whatever you wear looks great on you).