The RSI Candles Indicator is a useful and popular free MT4 Forex indicator. The indicator works by plotting a blue or red candle on the chart depending on the Relative Strength Index (RSI) values. If the RSI values are over 70, a red candle is plotted. If the RSI values are below 30, a blue candle is plotted. The RSI Candles Indicator is a great tool for any trader looking for an effective and free way to analyze the market.