What is the Bitcoin Rainbow Chart?

The Bitcoin Rainbow Chart is a long-term logarithmic growth curve overlaid with colored bands that indicate potential market sentiment and valuation zones for Bitcoin.

Created by a Reddit user in 2014, it uses a logarithmic regression to smooth out price volatility and visually divides the price range into nine color zones, from 'Fire Sale' (dark blue) to 'Maximum Bubble' (dark red). Each color corresponds to a rough valuation level, helping investors assess whether Bitcoin is historically cheap or expensive relative to its trend.

The chart is not an official tool but a popular community-driven guide. It is widely shared on social media and crypto forums, though it should be used with caution.

How is the Bitcoin Rainbow Chart calculated?

The Bitcoin Rainbow Chart is calculated by fitting a logarithmic regression line to Bitcoin's historical price data over time, then expanding bands around that line.

The bands are set at fixed percentage intervals above and below the regression line. For example, the 'Fire Sale' band might be 30% below the line, while 'Maximum Bubble' is 60% above. The exact parameters were chosen by the chart's creator to visually align with historical market cycles.

Because the regression is logarithmic, the chart accounts for Bitcoin's explosive early growth and its gradual slowdown in percentage returns.

How do I read the Bitcoin Rainbow Chart?

To read the Bitcoin Rainbow Chart, locate the current Bitcoin price on the vertical axis and the date on the horizontal axis; the color of the band that contains the price indicates the market sentiment.

The chart has nine color zones, each with a label:

  • Fire Sale – deep blue, historically cheap
  • Buy – light blue, undervalued
  • Accumulate – green, fair value
  • HODL – yellow-green, neutral
  • Optimistic – yellow, slightly overvalued
  • Greed – orange, overvalued
  • FOMO – red, high risk
  • Sell – bright red, bubble territory
  • Maximum Bubble – dark red, extreme overvaluation

Investors often use these zones to decide when to buy or sell, but the chart is not a precise timing tool.

Why is the Bitcoin Rainbow Chart popular?

The Bitcoin Rainbow Chart is popular because it simplifies complex price data into an easy-to-understand visual, making it accessible to both beginners and experienced traders.

It also provides a long-term perspective, showing that despite short-term volatility, Bitcoin has historically followed an upward trend. The colorful bands make it engaging to share on social media, and it encourages a disciplined, contrarian approach to investing.

However, its popularity also stems from its simplicity, which can be misleading if taken too literally.

What are the limitations of the Bitcoin Rainbow Chart?

The main limitation of the Bitcoin Rainbow Chart is that it is purely retrospective and does not predict future prices with any accuracy.

Key limitations include:

  • No fundamental analysis – it ignores news, adoption, regulation, and technical developments.
  • Fixed bands – the bands are static and may not adapt to changing market dynamics.
  • Subjectivity – the color labels are subjective and may influence biased decisions.
  • Logarithmic regression – the trend can break down during extreme bull or bear markets.

Investors should treat it as a general sentiment indicator, not a reliable forecast.

Is the Bitcoin Rainbow Chart reliable for buying or selling?

No, the Bitcoin Rainbow Chart is not a reliable standalone tool for making buy or sell decisions.

It is based on historical price patterns and does not account for future events. While it can indicate when Bitcoin is historically undervalued or overvalued, it cannot predict sudden crashes or rallies. For example, during the 2021 bull run, the chart stayed in the 'FOMO' zone for months before the peak, but it also remained in lower zones during prolonged bear markets, which could lead to premature entries.

Best practice: combine it with other indicators like on-chain metrics, market cap, and fundamental analysis.

How does the Bitcoin Rainbow Chart compare to other indicators like the Stock-to-Flow model?

The Bitcoin Rainbow Chart and the Stock-to-Flow (S2F) model are both long-term valuation tools, but they differ in methodology and purpose.

The Rainbow Chart uses logarithmic regression and colored bands to show relative valuation, while the S2F model predicts price based on Bitcoin's scarcity (the ratio of existing supply to new production). S2F produces a single price prediction line, whereas the Rainbow Chart provides a range of zones. The Rainbow Chart is more flexible and less deterministic, while S2F has been criticized for being overly bullish and failing to account for demand shocks.

Many analysts use both to get a broader picture, but neither is foolproof.

Where can I find the Bitcoin Rainbow Chart for 2026?

You can find the Bitcoin Rainbow Chart on various cryptocurrency data websites and community platforms.

Popular sources include:

  • Blockchaincenter.net – one of the first sites to host an interactive version.
  • TradingView – user-created versions with custom settings.
  • Reddit (r/Bitcoin) – the original chart is frequently posted and discussed.
  • CoinGecko and CoinMarketCap – some pages embed the chart or link to it.

Note that the chart is not an official Bitcoin tool, so always cross-check data with live prices.

Final Thoughts

The Bitcoin Rainbow Chart is a fun and visually appealing way to gauge Bitcoin's historical valuation, but it should not be the sole basis for investment decisions.

It offers a long-term perspective and can help you avoid emotional trading, but its limitations mean you should combine it with research and other indicators. As Bitcoin evolves, the chart's relevance may change, but it remains a popular conversation starter in the crypto community.

Use it as a guide, not a crystal ball, and always do your own research before buying or selling.