diff --git a/Iceshrimp.Frontend/Core/Miscellaneous/RenderMfm.cs b/Iceshrimp.Frontend/Core/Miscellaneous/RenderMfm.cs
index 7856aec9..3e276174 100644
--- a/Iceshrimp.Frontend/Core/Miscellaneous/RenderMfm.cs
+++ b/Iceshrimp.Frontend/Core/Miscellaneous/RenderMfm.cs
@@ -273,8 +273,8 @@ public static class MfmRenderer
 			"crop"     => MfmFnCrop(args, document),
 			"position" => MfmFnPosition(args, document),
 			"scale"    => MfmFnScale(args, document),
-			"fg"       => throw new NotImplementedException($"{node.Name}"),
-			"bg"       => throw new NotImplementedException($"{node.Name}"),
+			"fg"       => MfmFnFg(args, document),
+			"bg"       => MfmFnBg(args, document),
 			"border"   => throw new NotImplementedException($"{node.Name}"),
 			"ruby"     => throw new NotImplementedException($"{node.Name}"),
 			"unixtime" => throw new NotImplementedException($"{node.Name}"),
@@ -377,4 +377,24 @@ public static class MfmRenderer
 
 		return el;
 	}
+	
+	private static INode MfmFnFg(Dictionary<string, string?> args, IDocument document)
+	{
+		var el = document.CreateElement("span");
+
+		if (args.TryGetValue("color", out var color))
+			el.SetAttribute("style", $"color: #{color};");
+
+		return el;
+	}
+	
+	private static INode MfmFnBg(Dictionary<string, string?> args, IDocument document)
+	{
+		var el = document.CreateElement("span");
+
+		if (args.TryGetValue("color", out var color))
+			el.SetAttribute("style", $"background-color: #{color};");
+
+		return el;
+	}
 }
\ No newline at end of file