Not knowing code But just on a guess, change the 100% to something like 70% or 80%
RGBA 0/0/0/0 at 0% would be white (or ‘no color’ if that’s a gradient fade.). At 100% it would be black.
It’s the #000 in the code that is the short form of #000000 for black, so just replace with a lighter color. You also may want to see about changing the first % (in this case 0%) which tells the first color in the gradient where to “begin” gradient. So, currently it is starting at 0% the very beginning. If you set it to 50% or some other percent the gradient will start later down.
Just play with the numbers. It is hard to say, it looks like it is a much “tighter” gradient. In this case I would change the second % to 75 or so and see if that helps.