Enter it there if you want the feedback that its too dark. I'm afraid the color would affect how its perceived across the board, you'd probably get other comments about it having too much amber malt character/aroma. And it might, since color and flavor/aroma do often go hand in hand. Maybe enter it as a Vienna lager if its balanced and has a little malt character to go with the color.
Next tme you might add a good percentage of your extract late in the boil to get a lighter final color. Just use enough in the main boil to get some bitterness from your hops. You're not boiling out DMS with extract.
Pretty beer, by the way.