diff --git a/src/ui/Forms/ColorChooser.cs b/src/ui/Forms/ColorChooser.cs
index d16003883..4282f4766 100644
--- a/src/ui/Forms/ColorChooser.cs
+++ b/src/ui/Forms/ColorChooser.cs
@@ -196,6 +196,7 @@ namespace Nikse.SubtitleEdit.Forms
                 return;
             }
 
+            ActiveControl = null;
             _changeType = ChangeStyle.MouseMove;
             _selectedPoint = new Point(e.X, e.Y);
             Invalidate();
@@ -497,6 +498,7 @@ namespace Nikse.SubtitleEdit.Forms
             this._pnlBrightness.Size = new System.Drawing.Size(24, 216);
             this._pnlBrightness.TabIndex = 39;
             this._pnlBrightness.Visible = false;
+            this._pnlBrightness.MouseClick += new System.Windows.Forms.MouseEventHandler(this._pnlBrightness_MouseClick);
             // 
             // _lblAlpha2
             // 
@@ -1035,6 +1037,7 @@ namespace Nikse.SubtitleEdit.Forms
 
         private void PanelColorClick(Control panel)
         {
+            panel.Focus();
             var c = panel.BackColor;
             UpdateRgb($"{c.R:x2}{c.G:x2}{c.B:x2}{c.A:x2}");
             _tbHexCode.TextChanged -= TextBoxHexCodeTextChanged;
@@ -1056,25 +1059,21 @@ namespace Nikse.SubtitleEdit.Forms
         private void panelC2_MouseClick(object sender, MouseEventArgs e)
         {
             PanelColorClick(_panelC2);
-
         }
 
         private void panelC3_MouseClick(object sender, MouseEventArgs e)
         {
             PanelColorClick(_panelC3);
-
         }
 
         private void panelC4_MouseClick(object sender, MouseEventArgs e)
         {
             PanelColorClick(_panelC4);
-
         }
 
         private void panelC5_MouseClick(object sender, MouseEventArgs e)
         {
             PanelColorClick(_panelC5);
-
         }
 
         private void panelC6_MouseClick(object sender, MouseEventArgs e)
@@ -1104,5 +1103,10 @@ namespace Nikse.SubtitleEdit.Forms
         {
             _tbHexCode.MaxLength = _showAlpha ? 9 : 7;
         }
+
+        private void _pnlBrightness_MouseClick(object sender, MouseEventArgs e)
+        {
+
+        }
     }
 }