The only one I seemed to really have a problem with is Shell. The red seemed way too vibrant/bright. The Apple one I think can throw people off because of Apple's love with a glossy, "transparent" look. My intuition told me it was a lot lighter, but then on second thought, I decided to go way darker, thinking of the logo as separate from what Apple puts on their actual products.
Here are my results (and my very brief feedback follows):
coca-cola: 96 batman: 100 Yahoo!: 85 Dropbox: 83 McDonald's: 82 Starbucks: 85 IBM: 94 Shell: 89 Apple: 100
Avg Score: 90%
The only one I seemed to really have a problem with is Shell. The red seemed way too vibrant/bright. The Apple one I think can throw people off because of Apple's love with a glossy, "transparent" look. My intuition told me it was a lot lighter, but then on second thought, I decided to go way darker, thinking of the logo as separate from what Apple puts on their actual products.
I'm using a cheap CRT monitor, by the way.