diff --git a/app/src/main/java/com/example/research/ui/article/ArticleScreen.kt b/app/src/main/java/com/example/research/ui/article/ArticleScreen.kt
index b91f4fe..22be825 100644
--- a/app/src/main/java/com/example/research/ui/article/ArticleScreen.kt
+++ b/app/src/main/java/com/example/research/ui/article/ArticleScreen.kt
@@ -11,6 +11,7 @@ import androidx.compose.runtime.*
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.luminance
 import androidx.compose.ui.layout.onSizeChanged
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.painterResource
@@ -178,11 +179,21 @@ fun ArticleContent(
             val isHeavyArticle =
                 articleState.dslContent.size > HEAVY_ARTICLE_BLOCK_COUNT
 
+            val darkTheme = MaterialTheme.colorScheme.background.luminance() < 0.5f
             val displayBlocks = remember(
                 articleState.dslContent,
-                baseTextStyle
+                baseTextStyle,
+                darkTheme
             ) {
-                mergeDslBlocks(articleState.dslContent)
+                val merged =
+                    mergeDslBlocks(articleState.dslContent)
+                if (darkTheme) {
+                    merged.map {
+                        it.copy(text = DslAnnotatedParser.remapForDarkTheme(it.text))
+                    }
+                } else {
+                    merged
+                }
             }
             val articleList: @Composable (Modifier) -> Unit = { listModifier ->
                 LazyColumn(
diff --git a/app/src/main/java/com/example/research/ui/article/DslAnnotatedParser.kt b/app/src/main/java/com/example/research/ui/article/DslAnnotatedParser.kt
index 13f6159..1227370 100644
--- a/app/src/main/java/com/example/research/ui/article/DslAnnotatedParser.kt
+++ b/app/src/main/java/com/example/research/ui/article/DslAnnotatedParser.kt
@@ -411,6 +411,35 @@ object DslAnnotatedParser {
         linkText = Color(0xFF1E88E5),
     )
 
+    private val DARK_THEME_COLORS: Map<Color, Color> = mapOf(
+        Color(0xFF000000) to Color(0xFFE8E6E3),
+        Color(0xFF000080) to Color(0xFF8FA8E0),
+        Color(0xFF00008B) to Color(0xFF8FA8E0),
+        Color(0xFF0000FF) to Color(0xFF7C9CE8),
+        Color(0xFF006400) to Color(0xFF66BB6A),
+        Color(0xFF008000) to Color(0xFF66BB6A),
+        Color(0xFF8B0000) to Color(0xFFE57373),
+        Color(0xFF800000) to Color(0xFFE57373),
+        Color(0xFF800080) to Color(0xFFBA68C8),
+        Color(0xFFA52A2A) to Color(0xFFBCAAA4),
+        Color(0xFF008080) to Color(0xFF4DB6AC),
+        Color(0xFF808000) to Color(0xFFC0CA33),
+    )
+
+    fun remapForDarkTheme(text: AnnotatedString): AnnotatedString {
+        if (text.spanStyles.none { it.item.color in DARK_THEME_COLORS }) return text
+        val builder = AnnotatedString.Builder(text.text)
+        text.spanStyles.forEach { range ->
+            val style = DARK_THEME_COLORS[range.item.color]
+                ?.let { range.item.copy(color = it) } ?: range.item
+            builder.addStyle(style, range.start, range.end)
+        }
+        text.paragraphStyles.forEach { range ->
+            builder.addStyle(range.item, range.start, range.end)
+        }
+        return builder.toAnnotatedString()
+    }
+
     // Allow external cache clearing (e.g., when dictionaries change)
     fun clearRefCache() {
         refCache.evictAll()