Most people understand the difference between black and white and colour. It’s when you start talking about full-colour, one colour plus black, or spot colour that it can get confusing. So what’s the difference?
One colour, plus black allows you to choose one colour to be used
with traditional black ink. Full colour printing uses the same four
colours of ink — cyan, magenta, yellow and black — to create all the
different possible colour combinations. These are called 'process
colours.' Spot colour often require that inks be specially mixed just
for that job – which can be labour intensive.
Before you decide on your colours, speak to your print rep. He or she can help you look at the most cost-effective way to add colour to your job, and explain all your options.