With illstrator we can replace colour instantly using a simple tool like this one:
This tool has a spread where you can drag and drop the colours you wish to replace but also in the right hand corner you can select the colour packet which has certain themes by selecting these themes the colours will be matched and the closest will replace the original.
Here is my original:
This shows the colours that have already been used to will also show there replacement colours now my original used art pop colour to dim this down we can use the colour selection of ancient .
This has changed the colours much darker and more bland then the pop art that are designed to stand out this gives a less attractive result. So I tried again this time instead I choose to select the darker colours this put an interesting spin on the image shown in the picture below.
I changed my image one last time this time to the swatch ice cream this has bright my soft tones which has a retro feel of bright but still dim heres how its replaced the colour with the pinks and browns usually seen on ice cream trucks.