Open a design tool such as Canva, Photoshop, or Figma
Set the canvas size to 2560 x 1440 pixels
Keep important content within the safe area of 1546 x 423 pixels
Choose a clear background image or solid color
Add your channel name or logo
Use large, readable fonts
Keep text minimal
Use high-contrast colors
Place key elements in the center safe area
Avoid cluttering the banner
Check how it looks on desktop, mobile, and TV
Export the banner as a high-quality PNG or JPG
Upload it to your YouTube channel customization settings