diff --git a/src/ViewportWidget.cpp b/src/ViewportWidget.cpp
index cf897a9..db59f59 100644
--- a/src/ViewportWidget.cpp
+++ b/src/ViewportWidget.cpp
@@ -806,7 +806,7 @@ void ViewportWidget::drawSelectionPlanes()
     // Draw back to front for proper blending
 
     // XY Plane (Top), normal is Y (green)
-    glColor4f(0.0f, 1.0f, 0.0f, m_highlightedPlane == SketchPlane::XY ? 0.5f : 0.2f);
+    glColor4f(1.0f, 1.0f, 0.0f, m_highlightedPlane == SketchPlane::XY ? 0.5f : 0.2f);
     if (m_highlightedPlane == SketchPlane::XY) {
         glBegin(GL_QUADS);
         glVertex3f(planeOffset, 0, planeOffset);
@@ -815,7 +815,7 @@ void ViewportWidget::drawSelectionPlanes()
         glVertex3f(planeOffset, 0, planeOffset + planeSize);
         glEnd();
     }
-    glColor4f(0.0f, 1.0f, 0.0f, 1.0f);
+    glColor4f(1.0f, 1.0f, 0.0f, 1.0f);
     glBegin(GL_LINE_LOOP);
     glVertex3f(planeOffset, 0, planeOffset);
     glVertex3f(planeOffset + planeSize, 0, planeOffset);
@@ -824,7 +824,7 @@ void ViewportWidget::drawSelectionPlanes()
     glEnd();
 
     // XZ Plane (Front), normal is Z (blue)
-    glColor4f(0.0f, 0.0f, 1.0f, m_highlightedPlane == SketchPlane::XZ ? 0.5f : 0.2f);
+    glColor4f(1.0f, 1.0f, 0.0f, m_highlightedPlane == SketchPlane::XZ ? 0.5f : 0.2f);
     if (m_highlightedPlane == SketchPlane::XZ) {
         glBegin(GL_QUADS);
         glVertex3f(planeOffset, planeOffset, 0);
@@ -833,7 +833,7 @@ void ViewportWidget::drawSelectionPlanes()
         glVertex3f(planeOffset, planeOffset + planeSize, 0);
         glEnd();
     }
-    glColor4f(0.0f, 0.0f, 1.0f, 1.0f);
+    glColor4f(1.0f, 1.0f, 0.0f, 1.0f);
     glBegin(GL_LINE_LOOP);
     glVertex3f(planeOffset, planeOffset, 0);
     glVertex3f(planeOffset + planeSize, planeOffset, 0);
@@ -842,7 +842,7 @@ void ViewportWidget::drawSelectionPlanes()
     glEnd();
 
     // YZ Plane (Right), normal is X (red)
-    glColor4f(1.0f, 0.0f, 0.0f, m_highlightedPlane == SketchPlane::YZ ? 0.5f : 0.2f);
+    glColor4f(1.0f, 1.0f, 0.0f, m_highlightedPlane == SketchPlane::YZ ? 0.5f : 0.2f);
     if (m_highlightedPlane == SketchPlane::YZ) {
         glBegin(GL_QUADS);
         glVertex3f(0, planeOffset, planeOffset);
@@ -851,7 +851,7 @@ void ViewportWidget::drawSelectionPlanes()
         glVertex3f(0, planeOffset, planeOffset + planeSize);
         glEnd();
     }
-    glColor4f(1.0f, 0.0f, 0.0f, 1.0f);
+    glColor4f(1.0f, 1.0f, 0.0f, 1.0f);
     glBegin(GL_LINE_LOOP);
     glVertex3f(0, planeOffset, planeOffset);
     glVertex3f(0, planeOffset + planeSize, planeOffset);