I’ve posted this over at the forums but I thought it was important to post here as well.
The following chart was made to help take the guess work out of how your t-shirt design colours will look after Red Bubble’s colour conversion.
I simply took a CMYK swatch palette from Photoshop and put it on a t-shirt in Redbubble. As a result, all the colours were converted.
Update- I’ve now added coordinates so you can easily find the relating colours between each swatch set.
-In the first block of swatches is an extensive range of CMYK colours which you can use while in RGB or CMYK mode to colour your designs. On the bottom is how these colours will be converted on RB’s shirt design preview.
Hope this helps everyone.