I needed to create a spectrum chart so instead of nicking one off the internet I decided to make my own. First I decided to draw and colour one using colouring pencils and strong pigmented colours fading into the next colours of the spectrum.
Then I placed my coloured chart into photoshop. Brightened the colours up more using the brightness, contrast and vibrance tools. Then using the filter effect blur I managed to soften the colours more to blend into each other nicely.