We can only print CMYK colors, so we will convert your image to CMYK for printing if it is RGB color mode. Unfortunately, RGB is widely used for monitor display, so many colors cannot be precisely printed. Therefore, colors can only be converted to their closest matches in CMYK, which in this case, may cause serious chromatic aberration and badly influence the quality of stickers.
If Pantone colors or other special colors are used in the image, please inform us. We will convert Pantone colors to CMYK equivalently. Most Pantone colors can be used for printing, but there are still risks of chromatic aberration. Therefore, we suggest customers convert images to CMYK in advance.