diff --git a/tui/helper.go b/tui/helper.go
new file mode 100644
index 0000000..d3e9ab5
--- /dev/null
+++ b/tui/helper.go
@@ -0,0 +1,12 @@
+package tui
+
+import (
+	"fmt"
+
+	"github.com/gdamore/tcell/v2"
+)
+
+func hexStringFromColor(c tcell.Color) string {
+	r, g, b := c.RGB()
+	return fmt.Sprintf("[#%02x%02x%02x]", r, g, b)
+}