The bar to registration of colour as a trademark is high so that confusion can arise between competitors.   If you have legal rights over a brand identifier you can maintain its uniqueness for your brand and reduce the scope for customer confusion. 

The episode on colour as a brand Identifier touches on:

• What to consider when it comes to trademarks and colour.
• How to be distinctive using colour as a brand identifier.
• The challenge of preserving uniqueness in the absence of legal rights
• How litigation is sometimes an option to deter competitors from using your colour
• Brands that have achieved colour trademark registrations

Valuable Resources:

Brand Tuned Scorecard
Brand Tuned Accelerator
www.brandtuned.com