"We're in the Middle Ages so everything is dogshit brown".
People in the middle ages wore bespoke clothing dyed with the brightest colors people could afford, and some of the inexpensive and locally available dyes in Europe were quite vibrant. Even peasants, if they weren't completely destitute, would have colorful clothes.
And on top of that; The staunch refusal to put medieval people in medieval clothes. Medieval clothing looks cool! It's often fitted, people with any money would add a wide variety of embellishments. It's comfortable and especially peasant and military clothes were easy to move and work in. Most "Medieval" clothes; ugly leather vests, weird pants, whatever, are ugly and don't look nearly as nice as actual medieval clothing
And another things! Fake armor! Real medieval armor looks cool. A 13th century knight in maille looks like a badass. late medieval and renaissance plate armor looks gorgeous, and if a showrunner actually treated plate armor as conferring the amount of protection it does in real life you could have an antagonist shrugging off blows like the Terminator!
And real swordfighting! Real swordfighting is great! It's fast, it has a lot of visual flare. If fight coordinators take the time to learn it they can use real or realistic techniques to tell a story just as well as the silly flynning so many shows use!
In short, the actual middle ages are so much cooler than the dogshit brown leather vests version so many shows use.
"We're in the Middle Ages so everything is dogshit brown".
People in the middle ages wore bespoke clothing dyed with the brightest colors people could afford, and some of the inexpensive and locally available dyes in Europe were quite vibrant. Even peasants, if they weren't completely destitute, would have colorful clothes.
And on top of that; The staunch refusal to put medieval people in medieval clothes. Medieval clothing looks cool! It's often fitted, people with any money would add a wide variety of embellishments. It's comfortable and especially peasant and military clothes were easy to move and work in. Most "Medieval" clothes; ugly leather vests, weird pants, whatever, are ugly and don't look nearly as nice as actual medieval clothing
And another things! Fake armor! Real medieval armor looks cool. A 13th century knight in maille looks like a badass. late medieval and renaissance plate armor looks gorgeous, and if a showrunner actually treated plate armor as conferring the amount of protection it does in real life you could have an antagonist shrugging off blows like the Terminator!
And real swordfighting! Real swordfighting is great! It's fast, it has a lot of visual flare. If fight coordinators take the time to learn it they can use real or realistic techniques to tell a story just as well as the silly flynning so many shows use!
In short, the actual middle ages are so much cooler than the dogshit brown leather vests version so many shows use.
Too hard. Fight scenes now are a bunch of 1 second cuts, flashing by so fast they can give you epilepsy. So, so much easier to film.