Martin should be right. But just in case it’s not flipped normal’s, and you’re in “Solid” shading mode, you may have “Random” turned on under your Viewport Shading or you may be in a different MatCap or Lighting scenario. Try selecting “Object” or “Material” under Object Color or changing your MatCap. Hope this helps and as Martin said, it’s hard to know what you’re looking at when you didn’t include a screenshot. If you’re still having difficulties, paste a screenshot of what you are seeing and one of us can help. Good Luck and keep going‼️
