The candle has no value at all, neither its color nor its shape.

1. Single candles:
Hammer: Indicates an upward reversal at the end of a downtrend.
Hanging Man: Indicates a bearish reversal at the end of an uptrend.
Shooting Star: Indicates a bearish reversal after an uptrend.
Inverted Hammer: Indicates an upward reversal after a downtrend.
2. Binary candles:
Bullish Engulfing: Reflects a bullish reversal when a bullish candle engulfs the previous bearish candle.