Congrats on the book! I will have to check it out! I went to the website and the header is a purple, and the purchase link is blue (so it is blue on purple).

Congrats on the book! I will have to check it out! I went to the website and the header is a purple, and the purchase link is blue (so it is blue on purple). This doesn't have enough contrast ratio for accessibility reasons and is really hard to read. Since this is your purchase button, thought you would like to know. Good luck with the book!