Some scars are not going to respond to the subtle approach, but for fairly minor ones that have been around for a while, it's worth a try to lessen the color contrast with a simple switch: Trade your regular moisturizer for one with self-tanning properties.
The fake-tan aspect is absolutely crucial here. Not only will the sun or a tanning bed harm your skin in general and increase your chances of skin cancer, but exposure to UV light can also make a scar look worse.
Tanning lotion is not a good idea with fresh scars, which may absorb the lotion differently than the rest of your face. There are also some types of scars that simply won't "tan," so it's a good idea to consult a dermatologist before trying this. If your scars have been around for a while, though, and respond well to exfoliation and moisturizer, a subtle, sunless tan might help them blend in.
If you have a scar that's in an out-of-the-way location, try the tanning lotion there first to make sure the results are positive.
Subtle approach not for you, well you're not limited to the supermarket makeup aisle ...