The Cleveland Browns haven’t always leaned into the color brown, given that the team was named after Paul Brown (despite the legendary coach making up a story about how the name came to be). The reality is that the color orange has always been the primary color associated with the team, which followed Brown down to Cincinnati, with the team still owned by his family.
Over the years, the “Oreo stripe” down the middle of the orange helmet and the helmet itself became the symbol of the team. The original helmet, which was brought back as part of the 75th anniversary, did not have the brown portions of the stripe.