diff -r 87364e7ec333 -r 30b840ed8c0e src/main/kotlin/de/uapcore/lightpit/types/WebColor.kt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/kotlin/de/uapcore/lightpit/types/WebColor.kt	Fri Oct 23 18:40:50 2020 +0200
@@ -0,0 +1,27 @@
+package de.uapcore.lightpit.types
+
+
+/**
+ * Represents a web color in hexadezimal representation.
+ * @param arg the 6 digits hex string optionally preceded by a hash symbol
+ */
+class WebColor(arg: String) {
+
+    /**
+     * The color representation with the leading hash symbol.
+     */
+    val color: String = (if (arg.startsWith("#")) arg else "#$arg").toUpperCase()
+
+    /**
+     * The hex representation without the leading hash symbol.
+     */
+    val hex: String = color.substring(1)
+
+    init {
+        require(this.color.matches(Regex("#[0-9A-F]{6}"))) { "$color is not a color" }
+    }
+
+    override fun toString(): String {
+        return color
+    }
+}
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