From 2547c8c11799ee9bc997185d4472b7403986d6d7 Mon Sep 17 00:00:00 2001
From: syuilo <Syuilotan@yahoo.co.jp>
Date: Wed, 28 Dec 2022 13:42:30 +0900
Subject: refactor

---
 packages/frontend/src/scripts/color.ts | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 packages/frontend/src/scripts/color.ts

(limited to 'packages/frontend/src/scripts')

diff --git a/packages/frontend/src/scripts/color.ts b/packages/frontend/src/scripts/color.ts
new file mode 100644
index 0000000000..10a99a5a05
--- /dev/null
+++ b/packages/frontend/src/scripts/color.ts
@@ -0,0 +1,7 @@
+export const alpha = (hex: string, a: number): string => {
+	const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)!;
+	const r = parseInt(result[1], 16);
+	const g = parseInt(result[2], 16);
+	const b = parseInt(result[3], 16);
+	return `rgba(${r}, ${g}, ${b}, ${a})`;
+};
-- 
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