I just went into your account and made a new email to test it out again, and it maintained the color in my test send. Try test-sending the "VaW Test" to yourself, and see if the View as Webpage link is red. If it is red, then my suggestion would be to remake the text block in your actual email. You'd want to make a new text block, CTRL+SHIFT+V (clean paste) the wording from the original text block, redo any formatting you need to for the pasted text to look right, then delete the entirety of the old block. Then add the View As Webpage link, highlight it once it's inserted and bracketed, then select your color. Then do a test send of that to yourself.
If my test email still arrives as blue in your inbox, then it's definitely something with the browser (potentially a setting or caching issue), or a setting in your email client (Gsuite, Outlook, or whatever is applicable to you).
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