Colourwise, I'm sure - brown was mainly the colour of new furniture (not much of that) and new furnishings and that went into the early 80's.
As for clothes...lots of bright colours - not flouresecent, but primary or jewel shades, with a few pastels in summer (again, not always pink, not even for girls). And a lot of tartan print, muliti coloured stripes, and floral prints. Dark stuff was usually trousers & school shoes, nothing else. Some of the colour choices were a product of the early 70s "unisex" trend.
A few examples of the decade taste and colour forgot (girls first, then boys):-
Navy sandals, bright red lace pattern socks worn with an orange large paisley print nylon summer dress, with a front zip (with large ringpull) from neck to hips.
Patch denim print knee-length summer dress with shirred bodice and butterfly sleeves, white socks, brown sandals, brown anorack with narrown alpine style braid along the zip.
Dark tartan skirt, jumper matching one of the brighter colours in the tartan, white tights, black shoes (standard wear for v small girls at the time).
Pastel blue poloneck, bottle green A line corduroy pinnafore dress, white socks, brown shoes.
Turquoise & navy fake tartan trousers, mostly white blouse with mauve floral print forming narrow stripes, brown shoes, white socks, plain black anorak.
Green floral print sundress (shirred bodice, wide straps, tiered skirt to just below knee), white socks, brown sandals.
Dark brown cords, yellow T shirt, dark blue parka, brown shoes.
Stripey purple, brown & white shirt, brown trousers, brown shoes, orange fake tie (special occasions only).
Brownish plaid bomber jacket with fake fur trim, emerald green shorts, plain orange T shirt, navy socks, brown sandals.
Fake denim shorts, pale yellow T shirt, bare feet.
Red trousers, orange T shirt with brown & cream print, beige socks, brown shoes.