diff --git a/Note/FormatLogViewController.swift b/Note/FormatLogViewController.swift
index d9f000d..ff480b0 100644
--- a/Note/FormatLogViewController.swift
+++ b/Note/FormatLogViewController.swift
@@ -34,7 +34,9 @@ class FormatLogViewController: UIViewController {
         textView = UITextView()
         textView.translatesAutoresizingMaskIntoConstraints = false
         textView.font = UIFont.systemFont(ofSize: 16)
-        textView.backgroundColor = .systemBackground
+        textView.backgroundColor = UIColor { traitCollection in
+            traitCollection.userInterfaceStyle == .dark ? .secondarySystemBackground : .white
+        }
         textView.layer.cornerRadius = 12
         textView.layer.borderWidth = 0.5
         textView.layer.borderColor = UIColor.separator.cgColor
diff --git a/Note/FormatNoteViewController.swift b/Note/FormatNoteViewController.swift
index debf38a..a5cebf5 100644
--- a/Note/FormatNoteViewController.swift
+++ b/Note/FormatNoteViewController.swift
@@ -34,7 +34,9 @@ class FormatNoteViewController: UIViewController {
     private func setupUI() {
         textView = UITextView()
         textView.translatesAutoresizingMaskIntoConstraints = false
-        textView.backgroundColor = .systemBackground
+        textView.backgroundColor = UIColor { traitCollection in
+            traitCollection.userInterfaceStyle == .dark ? .secondarySystemBackground : .white
+        }
         textView.layer.cornerRadius = 12
         textView.layer.borderWidth = 0.5
         textView.layer.borderColor = UIColor.separator.cgColor