diff --git a/mainwindow.cpp b/mainwindow.cpp
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -24,6 +24,7 @@
 #include <QtDebug>
 #include <qwt_plot.h>
 #include <limits.h>
+#include <cmath>
 #include "utils.h"
 
 MainWindow::MainWindow(QWidget *parent) :
@@ -167,6 +168,7 @@ MainWindow::MainWindow(QWidget *parent) 
         channelsData.append(DataArray(numOfSamples, 0.0));
         curves.append(new QwtPlotCurve());
         curves[i]->setSamples(dataX, channelsData[i]);
+        curves[i]->setPen(makeColor(i));
         curves[i]->attach(ui->plot);
     }
 
@@ -528,6 +530,7 @@ void MainWindow::onNumOfChannelsChanged(
             channelsData.append(DataArray(numOfSamples, 0.0));
             curves.append(new QwtPlotCurve());
             curves.last()->setSamples(dataX, channelsData.last());
+            curves.last()->setPen(makeColor(curves.length()-1));
             curves.last()->attach(ui->plot);
         }
     }
@@ -655,3 +658,34 @@ void MainWindow::enableDemo(bool enabled
         ui->actionDemoMode->setChecked(false);
     }
 }
+
+/*
+  Below crude drawing demostrates how color selection occurs for
+  given channel index
+
+  0°                     <--Hue Value-->                           360°
+  |* . o . + . o . * . o . + . o . * . o . + . o . * . o . + . o . |
+
+  * -> 0-3
+  + -> 4-7
+  o -> 8-15
+  . -> 16-31
+
+ */
+
+QColor MainWindow::makeColor(unsigned int channelIndex)
+{
+    auto i = channelIndex;
+
+    if (i < 4)
+    {
+        return QColor::fromHsv(360*i/4, 255, 255);
+    }
+    else
+    {
+        double p = floor(log2(i));
+        double n = pow(2, p);
+        i = i - n;
+        return QColor::fromHsv(360*i/n + 360/pow(2,p+1), 255, 255);
+    }
+}
diff --git a/mainwindow.h b/mainwindow.h
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -28,6 +28,7 @@
 #include <QSerialPort>
 #include <QSignalMapper>
 #include <QTimer>
+#include <QColor>
 #include <qwt_plot_curve.h>
 
 #include "ui_about_dialog.h"
@@ -92,6 +93,8 @@ private:
     int demoCount;
     bool isDemoRunning();
 
+    QColor makeColor(unsigned int channelIndex);
+
 private slots:
     void loadPortList();
     void loadBaudRateList();