diff --git a/platform/o.n.swing.laf.flatlaf/src/org/netbeans/swing/laf/flatlaf/FlatDarkLaf.properties b/platform/o.n.swing.laf.flatlaf/src/org/netbeans/swing/laf/flatlaf/FlatDarkLaf.properties
index b2b8ee4..3e8f7f5 100644
--- a/platform/o.n.swing.laf.flatlaf/src/org/netbeans/swing/laf/flatlaf/FlatDarkLaf.properties
+++ b/platform/o.n.swing.laf.flatlaf/src/org/netbeans/swing/laf/flatlaf/FlatDarkLaf.properties
@@ -162,6 +162,7 @@
 # output
 nb.output.foreground=@foreground
 nb.output.backgorund=#2B2B2B
+nb.output.selectionBackground=#214283
 nb.output.err.foreground=#FF4040
 nb.output.input=#CC7832
 nb.output.link.foreground=$Component.linkColor
diff --git a/platform/o.n.swing.laf.flatlaf/src/org/netbeans/swing/laf/flatlaf/FlatLightLaf.properties b/platform/o.n.swing.laf.flatlaf/src/org/netbeans/swing/laf/flatlaf/FlatLightLaf.properties
index 1df4cff..b6839b6 100644
--- a/platform/o.n.swing.laf.flatlaf/src/org/netbeans/swing/laf/flatlaf/FlatLightLaf.properties
+++ b/platform/o.n.swing.laf.flatlaf/src/org/netbeans/swing/laf/flatlaf/FlatLightLaf.properties
@@ -70,3 +70,6 @@
 
 # QuickSearch
 nb.quicksearch.border=1,1,1,1,@background
+
+# output
+nb.output.selectionBackground=#89BCED