diff --git a/src/Semi.Avalonia/Themes/Dark/RadioButton.axaml b/src/Semi.Avalonia/Themes/Dark/RadioButton.axaml
index 73890a1..9ece5ac 100644
--- a/src/Semi.Avalonia/Themes/Dark/RadioButton.axaml
+++ b/src/Semi.Avalonia/Themes/Dark/RadioButton.axaml
@@ -49,10 +49,10 @@
 
     <SolidColorBrush x:Key="RadioButtonButtonUncheckedForeground" Opacity="0.8" Color="#F9F9F9" />
     <SolidColorBrush x:Key="RadioButtonButtonUncheckedPointeroverBackground" Opacity="0.16" Color="White" />
-    <SolidColorBrush x:Key="RadioButtonButtonUncheckedDisabledForeground" Color="#78787A" />
+    <SolidColorBrush x:Key="RadioButtonButtonUncheckedDisabledForeground" Opacity="0.35" Color="#F9F9F9" />
     <SolidColorBrush x:Key="RadioButtonButtonCheckedBackground" Color="#43444A" />
     <SolidColorBrush x:Key="RadioButtonButtonCheckedForeground" Color="#54A9FF" />
-    <SolidColorBrush x:Key="RadioButtonButtonCheckedDisabledForeground" Color="#78787A" />
+    <SolidColorBrush x:Key="RadioButtonButtonCheckedDisabledForeground" Opacity="0.35" Color="#F9F9F9" />
 
     <Thickness x:Key="RadioButtonCardPadding">16 12</Thickness>
 
diff --git a/src/Semi.Avalonia/Themes/Light/RadioButton.axaml b/src/Semi.Avalonia/Themes/Light/RadioButton.axaml
index e584fbd..394d58b 100644
--- a/src/Semi.Avalonia/Themes/Light/RadioButton.axaml
+++ b/src/Semi.Avalonia/Themes/Light/RadioButton.axaml
@@ -49,10 +49,10 @@
 
     <SolidColorBrush x:Key="RadioButtonButtonUncheckedForeground" Opacity="0.8" Color="#1C1F23" />
     <SolidColorBrush x:Key="RadioButtonButtonUncheckedPointeroverBackground" Opacity="0.09" Color="#2E3238" />
-    <SolidColorBrush x:Key="RadioButtonButtonUncheckedDisabledForeground" Color="#A9AAAB" />
+    <SolidColorBrush x:Key="RadioButtonButtonUncheckedDisabledForeground" Opacity="0.35" Color="#1C1F23" />
     <SolidColorBrush x:Key="RadioButtonButtonCheckedForeground" Color="#0077FA" />
     <SolidColorBrush x:Key="RadioButtonButtonCheckedBackground" Color="White" />
-    <SolidColorBrush x:Key="RadioButtonButtonCheckedDisabledForeground" Color="#A9AAAB" />
+    <SolidColorBrush x:Key="RadioButtonButtonCheckedDisabledForeground" Opacity="0.35" Color="#1C1F23" />
 
     <Thickness x:Key="RadioButtonCardPadding">16 12</Thickness>