diff --git a/app/src/main/java/io/nekohasekai/sfa/ktx/Colors.kt b/app/src/main/java/io/nekohasekai/sfa/ktx/Colors.kt
index 9c5b1f2..17631bb 100644
--- a/app/src/main/java/io/nekohasekai/sfa/ktx/Colors.kt
+++ b/app/src/main/java/io/nekohasekai/sfa/ktx/Colors.kt
@@ -2,9 +2,12 @@ package io.nekohasekai.sfa.ktx
 
 import android.content.Context
 import android.graphics.Color
+import android.os.Build
 import android.util.TypedValue
 import androidx.annotation.AttrRes
 import androidx.annotation.ColorInt
+import androidx.core.content.ContextCompat
+import com.google.android.material.color.MaterialColors
 
 
 @ColorInt
@@ -18,14 +21,27 @@ fun Context.getAttrColor(
 }
 
 @ColorInt
-fun colorForURLTestDelay(urlTestDelay: Int): Int {
-    return if (urlTestDelay <= 0) {
-        Color.GRAY
-    } else if (urlTestDelay <= 800) {
-        Color.GREEN
-    } else if (urlTestDelay <= 1500) {
-        Color.YELLOW
-    } else {
-        Color.RED
+fun colorForURLTestDelay(context: Context, urlTestDelay: Int): Int {
+    if (urlTestDelay <= 0) {
+        return Color.GRAY
     }
+    val colorRes =
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R && context.resources.configuration.isNightModeActive) {
+            if (urlTestDelay <= 800) {
+                android.R.color.holo_green_dark
+            } else if (urlTestDelay <= 1500) {
+                android.R.color.holo_orange_dark
+            } else {
+                android.R.color.holo_red_dark
+            }
+        } else {
+            if (urlTestDelay <= 800) {
+                android.R.color.holo_green_light
+            } else if (urlTestDelay <= 1500) {
+                android.R.color.holo_orange_light
+            } else {
+                android.R.color.holo_red_light
+            }
+        }
+    return MaterialColors.harmonizeWithPrimary(context, ContextCompat.getColor(context, colorRes))
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/nekohasekai/sfa/ui/dashboard/GroupsFragment.kt b/app/src/main/java/io/nekohasekai/sfa/ui/dashboard/GroupsFragment.kt
index 6c0096a..0958ab2 100644
--- a/app/src/main/java/io/nekohasekai/sfa/ui/dashboard/GroupsFragment.kt
+++ b/app/src/main/java/io/nekohasekai/sfa/ui/dashboard/GroupsFragment.kt
@@ -212,7 +212,12 @@ class GroupsFragment : Fragment(), CommandClientHandler {
                 items.forEach {
                     builder.append("■")
                     builder.setSpan(
-                        ForegroundColorSpan(colorForURLTestDelay(it.urlTestDelay)),
+                        ForegroundColorSpan(
+                            colorForURLTestDelay(
+                                binding.root.context,
+                                it.urlTestDelay
+                            )
+                        ),
                         builder.length - 1,
                         builder.length,
                         Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
@@ -288,7 +293,12 @@ class GroupsFragment : Fragment(), CommandClientHandler {
             binding.itemStatus.isVisible = item.urlTestTime > 0
             if (item.urlTestTime > 0) {
                 binding.itemStatus.text = "${item.urlTestDelay}ms"
-                binding.itemStatus.setTextColor(colorForURLTestDelay(item.urlTestDelay))
+                binding.itemStatus.setTextColor(
+                    colorForURLTestDelay(
+                        binding.root.context,
+                        item.urlTestDelay
+                    )
+                )
             }
         }
     }