Ok, i did my shaman colour black but when i was sham my shaman colour turned blue have hardmode but it isnt on.

I think this is because of the bug which means you can have pure black(00000), replace the last 0 with a 1 or move the color picker untill its black but not pure 0
Pretty sure it's already reported

000000 is default
000001 is black

Are you sure you got the code correct? Sometimes people accidentally add extra numbers to the hex code. Try going to Shaman color to pick a color then copy the code

yeah its happened to me to
but some how it worked after a few rounds of me being sham

Tbh sometimes when i do my shaman color and i copy and paste a color (like my purple in my picture <<<) it will load to normal sham color