diff --git a/assets/js/components/DayTabs.js b/assets/js/components/DayTabs.js
index 8030bf6..d54c5fc 100644
--- a/assets/js/components/DayTabs.js
+++ b/assets/js/components/DayTabs.js
@@ -52,7 +52,7 @@ const html = htm.bind(h);
 // Converts a base RGB colour into the same 135° gradient used by the thermal
 // bands legend: 50% white blend to pastelise, then a subtle light→dark sweep.
 function weatherGradient(r, g, b) {
-  const blend   = (c) => Math.round(c + (255 - c) * 0.68);
+  const blend   = (c) => Math.round(c + (255 - c) * 0.82);
   const [mr, mg, mb] = [blend(r), blend(g), blend(b)];
   const lighten = (c) => Math.min(255, Math.round(c + (255 - c) * 0.30));
   const darken  = (c) => Math.round(c * 0.96);