0to255

• +15 #fff 100%
• +14 #ffe 97%
• +13 #ffd 93%
• +12 #ffc 90%
• +11 #ffb 87%
• +10 #ffa 83%
• +9 #ff9 80%
• +8 #ff8 77%
• +7 #ff7 73%
• +6 #ff6 70%
• +5 #ff5 67%
• +4 #ff4 63%
• +3 #ff3 60%
• +2 #ff2 57%
• +1 #ff1 53%
• 0 #ff0 50%
• -1 #ee0 47%
• -2 #dd0 43%
• -3 #cc0 40%
• -4 #bb0 37%
• -5 #aa0 33%
• -6 #990 30%
• -7 #880 27%
• -8 #770 23%
• -9 #660 20%
• -10 #550 17%
• -11 #440 13%
• -12 #330 10%
• -13 #220 7%
• -14 #110 3%
• -15 #000 0%

Created by Shaun Chapman