A logo is a valuable business asset, and as such it needs to be versatile. No matter what colour your logo is, you need a black and white, or single colour, version.
Why? Although we live in the digital age, there are still a high number of ‘offline’ locations where a business may need to resort to a black and white (or single colour) version of its logo. Examples include:
Frosted vinyls on glass windows
Newspapers and magazines
Promotional items – pens, mugs, memory sticks etc
The key is to make sure that any design works in a single colour, right from the beginning of the design process. I make sure that every logo I design works in black and white and supply those files with the full colour versions at the end of the design process.