diff --git a/sass/color/background_tsuyukusa.scss b/sass/color/background_tsuyukusa.scss
new file mode 100644
index 0000000..bfb4777
--- /dev/null
+++ b/sass/color/background_tsuyukusa.scss
@@ -0,0 +1,3 @@
+:root {
+  --background: #2ea9df;
+}
diff --git a/sass/color/tsuyukusa.scss b/sass/color/tsuyukusa.scss
new file mode 100644
index 0000000..bb3d73a
--- /dev/null
+++ b/sass/color/tsuyukusa.scss
@@ -0,0 +1,9 @@
+:root {
+  --accent: rgb(46, 169, 223);
+  --accent-alpha-70: rgba(46, 169, 223, 0.7);
+  --accent-alpha-20: rgba(46, 169, 223, 0.2);
+
+  --background: #21202c;
+  --color: white;
+  --border-color: rgba(255, 255, 255, 0.1);
+}