1 files changed, 25 insertions, 0 deletions
diff --git a/app/graphql/types/color_type.rb b/app/graphql/types/color_type.rb
new file mode 100644
index 00000000000..ee5c0c8737b
--- /dev/null
+++ b/app/graphql/types/color_type.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Types
+  class ColorType < BaseScalar
+    graphql_name 'Color'
+    description <<~DESC
+      Color represented as a hex code or named color.
+
+      For example: "#fefefe".
+    DESC
+
+    def self.coerce_input(value, ctx)
+      color = Gitlab::Color.of(value)
+      raise GraphQL::CoercionError, 'Not a color' unless color.valid?
+
+      color
+    rescue ArgumentError => e
+      raise GraphQL::CoercionError, e.message
+    end
+
+    def self.coerce_result(value, ctx)
+      value.to_s
+    end
+  end
+end