Changing colour of header and footer on only one page

Site URL: https://koi-turtle-f3eh.squarespace.com/

Hello! I am trying to change the colour of the header and footer only on the home page - I have tried targeting the collection id and also injecting into the page header but I cannot for the life of me figure it out. I have attached an image below - I need the header to match the colour in the logo but ONLY for the home page. 

Here is the link to the site https://koi-turtle-f3eh.squarespace.com/

Thank you in advance!

Hi, try this code, it should work for just the homepage, I think that the colour is correct, but you can adjust the #HEX if needed.

#collection-63169d1b2a89ee474abc6b88 {
.header {
    background: #2B2A29;
}
#header a {
    color: #ffffff !important;
}
#footer-sections .section-background {
    background: #2B2A29;
}
}

Thank you so much for your help @Ziggy

It still doesn't seem to be working. I can't see anything in my CSS that would be conflicting?

If you can contact me via my website I'll see what I can do to help you with this, I'll need access to the dashboard to effectively get this working: https://squarefortytwo.com/

Use this new CSS code

/* Homepage */
body.homepage .header-background-solid {
    background-color: black !important;
}
body.homepage footer.sections .section-background {
    background-color: black !important;
}