diff --git a/client/styles.css b/client/styles.css
index ec54a54..9e30385 100644
--- a/client/styles.css
+++ b/client/styles.css
@@ -1,11 +1,11 @@
 .card-container {
-	background-color: mix(@theme_base_color, @theme_bg_color, 0.7);
+	background-color: color-mix(in oklab, @theme_base_color,
+								@theme_bg_color 60%);
 	padding: 6px;
 }
 
 .card {
-	border: 1px solid alpha(@theme_fg_color, 0.2);
-	box-shadow: 0 1px 2px alpha(black, 0.15);
+	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
 	background-color: @theme_bg_color;
 	padding: 12px 16px;
 }
@@ -15,7 +15,7 @@
 }
 
 .activity-priority {
-	color: alpha(@theme_fg_color, 0.6);
+	color: color-mix(in oklab, @theme_fg_color 60%, @theme_bg_color);
 }
 
 /*