With the recent drop, BTC has almost fallen back within the blue price region on the rainbow/regression chart. This has historically been a good area to accumulate in for the long term. With that said, this chart has been adjusted a few times already. As you can see, the color coded tags are also not very accurate anymore these days. Still good to keep an eye on these high timeframe charts every now and then I think. Use them in combination with other charts & indicators to your liking.(Daan Crypto Trades)