An impossibly low score of 0.000020 on the JND test.
Oh by the way, this is funny, I love that. "What, thats not possible! You cheated!" I mean, I did. I just wanted to see what a perfect score could be. xD My monitor has bad backlighting so the color on my screen isn't uniform, with that, I got .0039 and on mobile .0022. Some colors are easier though