Color Gradients and Heatmaps in MQL5
Info
The Color Gradients and Heatmaps in MQL5 is a Script for MetaTrader 4 that this code demonstrates how to create color scales, color gradients, and heatmaps using the mql5 language. We will work with the RGB color model and the standard StringToColor function for simplicity.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Script works exclusively on MetaTrader 4 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL4/Scripts folder via File ? Open Data Folder in MetaTrader 4.
How to Install and Use Color Gradients and Heatmaps in MQL5
1. Installation: Move your script file into the MQL/Scripts directory and restart the platform.
2. Execution: Drag the script onto a chart; it will perform a one-time action, such as closing all open orders or clearing chart objects.
3. Editing: Use MetaEditor (F4) to modify code, click "Compile," and verify no errors appear in the terminal before running.
4. Removing: Scripts stop automatically, but you can remove them manually by right-clicking the chart and choosing "Remove Script."
Frequently Asked Questions
Q: How are scripts different from EAs? A: Scripts execute a single action and then stop; EAs monitor the market and trade continuously.
Q: Can I assign a hotkey to a script? A: Yes, right-click the script in the Navigator, select "Set Hotkey," and define your preferred keyboard shortcut.
Q: Why did my script stop? A: Scripts are designed to stop immediately after finishing their programmed command; this is normal behavior.
What this tool does
This code demonstrates how to create color scales, color gradients, and heatmaps using the MQL5 language.
Typical Use Case
This Script excels in automated trading and technical analysis on MetaTrader 4.
Compatible Platform & Setup
This Script works on MetaTrader 4. Place the file in the MQL4/Scripts folder and restart the terminal.
Description & Settings
Related: Multi-Timeframe AO and MACD Indicator with Color Lines - another powerful script for MetaTrader 4 traders.
This code demonstrates how to create color scales, color gradients, and heatmaps using the MQL5 language.Also recommended: change objects color - similar script with strong performance on MetaTrader 4.
We will work with the RGB color model and the standard StringToColor function for simplicity. While other color conversion methods can be implemented in MQL5, the RGB model was chosen for its ease of performing mathematical operations on colors.
Recommendations:
This indicator is recommended for monitoring the daily percentage variation of assets within a market watch.
It is advised to use a minimum of 5 assets and a maximum of 20-25 assets to ensure they fit on the screen.
You can choose between three visualization modes: scale, gradient, and heatmap.
This code was updated in 2026.
You may also like: auto mm - excellent alternative for script users on MetaTrader 4.
Source Code
яю//+------------------------------------------------------------------+
#property copyright "RobotFX"
#property link "https://robotfx.org"
#property version "1.00"
#property strict //--- Para compatibilidade com MT4
#property indicator_chart_window
#property indicator_plots 0
enum ENUM_SCALE_TYPE {DYNAMIC,FIXED};
enum ENUM_INDICATOR_TYPE {SCALE,GRADIENT,HEATMAP};
input string indicatorSettings = "----- Indicator Settings"; // % Indicator Management.......
⚠ Limitations & Risk Warning
- This tool is provided for educational and testing purposes only.
- Past performance does not guarantee future results.
- Trading involves substantial risk of loss. Use on a demo account first.
- Results may vary depending on market conditions, broker, and settings.
- We recommend thorough backtesting and forward testing before using with real funds.