Here: (A list of bl's with dark haired ukes and a preferably lighter haired seme - but the genre changes a lot)
1- Stranger Than Friends - The uke is kind of a tsundere- he gets flustered really easily, the seme is the type of man who's absolutely shameless, he's also totally whipped for his childhood friend.
[Childhood friends trope]
Summary:
"I would like to do something! Let's see our old photos!!" Lee Hyuk and In Seo who have been growing up together since birth, accidentally found old photos and then impulsively kissed. Since then, Lee Hyuk has tried to avoid dating, but he can only think about kissing In Seo. This is a romantic comedy about the relationship of Lee Hyuk and In Seo.
( https://www.mangago.zone/read-manga/no_better_than_strangers/)
2- Semantic Error - A sort of OCD, cold uke x Popular seme who's that one classmate who enjoys destroying your routines, he eventually figures out he likes the seme but not before the bucketload of drama that comes from miscommunication and misunderstandings- yay!(/TДT)/ The seme is such a petty person too, lmao.
[Classmates - One Hot-One Cold Trope]
Summary:
Computer science major Chu Sangwoo is the epitome of an inflexible and strict rule-abiding person. While working on a liberal arts group project with freeloaders who don’t put in any effort, Sangwoo reasonably decides to remove their names from the final presentation.
But he didn’t imagine how involved he would become with the person whose study-abroad plans were messed up because of that project. The involved person: the campus star who everyone knows, Department of Design’s Jang Jaeyoung. He has everything from skills, looks, family background and good relationships except for 1 big problem: Chu Sangwoo.
What happens when an engineer and an artist whose personalities are like oil and water have to work together? Jang Jaeyoung is like a semantic error in the perfect world of Chu Sangwoo. Will Sangwoo be able to debug this?
( https://www.mangago.zone/read-manga/semantic_error/)
3- Glasses, Cloth and Playlist - Now this, this is actually a black and white manga but when they do those rare moments of colouring you can see that the uke's hair is darker, this is one of my favourites, the uke recently broke up with his boyfriend and got a job at the same time-same company the seme was haired for (because two people left or were fired? I'm not sure) the seme looks about 80% similar to the uke's boyfriend and it's hate at first sight. ╮( ̄▽ ̄)╭
Ofc they become fuckbuddies afterwards because DAMN THAT SEXUAL TENSION IS THICK, but they still compete with each other for things at work, the first chapter will explain the title (not explicity but it's implied) and it's also H I L A R I O U S! Hope you enjoy this one!
Summary:
N/A
( https://www.mangago.zone/read-manga/glasses_cloth_and_playlist/)
4- Cinema Next Door - This is really fluffy!! And the misunderstandings are hilarious before it gets cleared up! Somewhere in the middle though it gets angsty and *sob* but it gets better again! The uke and the seme have such a cute relationship bc they're comfortable with each other, understand each other, etc, etc.
The seme actually has shaved hair though BUT- the uke has dark, black hair so... I think it meets your standards..
Summary:
The walls are thin and it's hard not to know what your neighbor is up to especially when they cry loudly every time they watch a movie.
( https://www.mangago.zone/read-manga/cinema_next_door/)
5- Oh! My Asisstant - I've only started reading this very recently and the seme had dyed blonde hair while the uke has darker brown hair, this book has SO much drama, at some points of the book you will feel like screaming PLEASE JUST COMMUNICATE GAHHH! and it can get somewhat frustruating because again PLEASE JUST TAAALK!! but it's a worthwile read.
The seme is a r19 webartist who makes [straight] mangas- he watches [straight] porn for reference but in two years has never gotten hard watching it, he's also an eager puppy who's super oblivious to his own feelings- let alone his sexuality.
The uke is hired by the seme after he decides he needs an asisstant blah blah drama drama drama, he's super calm and collected (love their dynamic!) and is actually sexually active and he knows of his gayness (oh god why did I say it like that), or you could also say he's aware of his sexuality.
Can't say more without spoiling it but hope you enjoy!
Summary:
Naive comic artist Seonho, who draws R-19 series, hires beauty(?)-and-brains Muyoung with outstanding skills to be his assistant. However, working with Muyoung who is too task-oriented and has a prickly temperament, turns out to be a little difficult. Seonho asks Muyoung to pose for him one day to help with a sexy scene, but when he saw how erotic Muyoung's pose is, Seonho's "junior"... that hasn't stood in 2 years, got up. It's hard! It got hard! It finally got hard!
This is an unpredictable, comical and chest-tickling BL story brought to you by Milla and Yalgae!
(Lonely Soul Translations)
( https://www.mangago.zone/read-manga/oh_my_assistant/)
----------------------------------------------------------------------------------------
OH GOD WHY DID I TAKE A WHOLE HOUR RESEARCHING AND TYPING THIS T^T DAMN, HOPE YOU LIKE IT T^T ヾ(❀╹◡╹)ノ~
Any manga/manhua/manwha with dark haired uke please! Black hair, dark brown hair, dark red hair and etc, I'll take it
Preferably with a light haired seme ╥﹏╥
Anything will be fine as long as it doesnt have shotas in it, thank you!! (/TДT)/
edit: It doesn't have to be stereotypical by the way ╥﹏╥