Red: Red Flavor-Red Velvet
Orange: Blue Orangeade-TXT (two for one lol)
Yellow: Yellow Wood-Stray Kids (this is technically an album, but I can't think of anything else)
Green: Green Rain-SHINee
Blue: Blue-Big Bang
Purple: Purple Line-TVXQ
Pink: Hot Pink-EXID
Black: Black Swan-BTS
White: White Night-NCT 127
Red: red dress by red velvet
Orange: blue orangeade by txt
Yellow: idk
Green: green apple by berrygood
Blue: blue moon by gyeong ree
Purple: purple by sohlhee
Pink: pink walk by gaho
Black: black swan by bts
White: white tshirt by jonghyun
Red: Red moon- wooseok
Orange: Blue orangeade- txt
Yellow: ...
Green: ...
Blue: Blue rose- up10tion
Purple: ...
Pink: Pink magic- yesung
Black: Black suit- super junior
White: Black or white- cross gene
Red: Red Moon KARD
Orange: Orange Shinwha
Yellow: does this count YeLow Gang Sik-K? I Don't Know
Green: Green Rain Shinee
Blue: Blue BOL4
Purple: Purple HyunA & E'Dawn
Pink: Pink Magic Yesung
Black: Black Dress CLC
White: White Night Up10tion
Red: Red Flavor Red Velvet
Orange: Blue Orangeade TXT
Yellow: YeLow Gang Sik-K
Green: idk
Blue: Blue Onew
Purple: Purple Hyuna & Dawn
Pink: Pink Magic Yesung
Black: Black on Black NCT 2018
White: White T-shirt Jonghyun
Red: Red - Hyuna
Orange: Blue Orangeade - TXT
Yellow: can't find much for yellow so Gold - offonoff
Green: Green Rain - SHINee
Blue: Blue - Moti
Purple: Purple Line - TVXQ
Pink: Pink Walk - Gaho
Black: Black Gold - Kei.G
White: White Noise - EXO
Red: red - hyuna, red flavor - red velvet, red sun - gwsn, red light - f(x)
Orange: blue orangeade - txt
Yellow: yellow pink - lipbubble, yellow light - tiffany
Green: green rain - shinee, green light - snsd
Blue: blue lemonade - red velvet, blue flame - astro, blue - ha sungwoon, blue rose - up10tion, blue - onew
Purple: purple line - tvxq,
Pink: hot pink - exid, yellow pink - lipbubble, pink magic - yesung
Black: black on black - nct 2018, black heart - unb, black suit - super junior
White: white - the boyz, white noise - exo
Red: Red - Hyuna
Orange: BlueOrangeade - TXT
Yellow: Yellow (Coldplay)- Woosung cover that's the best I could come up with
Green: Green Rain - SHINee
Blue: Blue Flame - Astro
Purple: Violet - Pentagon? (if that doesn't count, my only other answer is Hongjoong's cover of Purple Rain by Prince)
Pink: Pink Magic - Yesung
Black: Black Suit - Super Junior
White: White Love - Monsta X
Red: Red Light- f(x)
Orange: Blue Orangeade - TXT
Yellow: Yellow Pink - Lipbubble
Green: Green Rain - SHINee
Blue: Blue - Taeyeon
Purple: Purple - HyunA and E'Dawn
Pink: Pink Magic- Yesung
Black: Back All Black - The Boyz
White: White - TVXQ!
Red: REALLY-BLACKPINK
Orange: ONCE MORE TIME-TWICE
Yellow: YES OR YES-TWICE
Green: GO GO-BTS
Blue: BDZ-TWICE
Purple: PRECIOUS LOVE-TWICE
Pink: PLAYING WITH FIRE-BLACKPINK
Black: BOMBAYAH-BLACKPINK
White: WHISTLE-BLACKPINK
red: red - hyuna
orange: blue orangeade - txt
yellow: yellow - the rose
green: green apple - berrygood
blue: blue - big bang
purple: purple - hyuna & dawn
pink: hot pink - exid
black: black dress - clc
white: black or white - dreamcatcher
Red: red sun (021) - gwsn
Orange: blue orangeade - txt
Yellow: yellow - miryo
Green: green rain - shinee
Blue: midnight blue - a6ix
Purple: purple line - tvxq
Pink: hot pink - exid
Black: black on black - nct
White: white night - nct 127
Red: Red Sun - DREAMCATCHER
Green: Green Apple - Berrygood
Blue: Deep Blue Eyes - Girls Next Door
Purple: Violeta - IZ*ONE (Best I've got)
Pink: Hot Pink - EXID
Black: BLACK DRESS - CLC
White: Black or White - Dreamcatcher
Red:red sun - dreamcatcher
Orange: blue orangeade - txt
Yellow: yellow pink - lipbubble
Green: idk
Blue: baby blue love - twice
Purple: pporappippam - sunmi (it means purple night in english)
Pink: hot pink - exid
Black: black dress - clc
White: black or white - dreamcatcher
Red: Red Moon by Kim Wooseok
Orange: Catallena by Orange Caramel
Yellow: Yellow by Miryo
Green: Green Rain by SHINee
Blue: Blue Moon by Kyungri
Purple: Purple by woo!ah!
Pink: Hot Pink by EXID
Black: Black on Black by NCT
White: Black or White by Dreamcatcher
Red: red - hyuna
Orange: blue orange-ade - txt
Yellow: yellow - miryo
Green: green light - snsd
Blue: blue flame - astro
Purple: purple night - sunmi
Pink: hot pink - exid
Black: black widow - pristin
White: black or white - dreamcatcher