Color Swatch is rectangular inside a rounded border

[chlgr]

Hello, can someone give me the css code to change the inside color, cause as you can see in the image below, the orange color or any color than white is shown in a rectangular shape inside of a rounded border, I tried to seek everywhere but didn't find solution, if someone volunteer could help me, I would appreciate it.

[MaksymKurniy]

if it's a picture, add “object-fit: cover;”
Better yet, share the link to answer your question exactly

[chlgr]

I tried object-fit but it doesn't work