0to255

• +6 #fff 100%
• +5 #f6f6f6 96%
• +4 #eee 93%
• +3 #e5e5e5 90%
• +2 #ddd 87%
• +1 #d4d4d4 83%
• 0 #ccc 80%
• -1 #c4c4c4 77%
• -2 #bbb 73%
• -3 #b3b3b3 70%
• -4 #aaa 67%
• -5 #a2a2a2 64%
• -6 #999 60%
• -7 #919191 57%
• -8 #888 53%
• -9 #808080 50%
• -10 #777 47%
• -11 #6f6f6f 44%
• -12 #666 40%
• -13 #5e5e5e 37%
• -14 #555 33%
• -15 #4d4d4d 30%
• -16 #444 27%
• -17 #3c3c3c 24%
• -18 #333 20%
• -19 #2b2b2b 17%
• -20 #222 13%
• -21 #1a1a1a 10%
• -22 #111 7%
• -23 #090909 4%
• -24 #000 0%

Created by Shaun Chapman