diff --git a/css/20_map.css b/css/20_map.css
index 1c89fb588..b43c664e8 100644
--- a/css/20_map.css
+++ b/css/20_map.css
@@ -5,7 +5,7 @@
 
 /* IE/Edge needs these overrides for markers to show up */
 .layer-osm path.oneway-marker-path          { fill: #000; }
-.layer-osm path.sided-marker-natural-path   { fill: rgb(140, 208, 95); }
+.layer-osm path.sided-marker-natural-path   { fill: rgb(170, 170, 170); }
 .layer-osm path.sided-marker-coastline-path { fill: #77dede; }
 .layer-osm path.sided-marker-barrier-path   { fill: #ddd; }
 .layer-osm path.sided-marker-man_made-path  { fill: #fff; }
diff --git a/modules/svg/defs.js b/modules/svg/defs.js
index f0c886b5e..ccbe794cf 100644
--- a/modules/svg/defs.js
+++ b/modules/svg/defs.js
@@ -53,7 +53,7 @@ export function svgDefs(context) {
                 .attr('stroke', 'none')
                 .attr('fill', color);
         }
-        addSidedMarker('natural', 'rgb(140, 208, 95)', 0);
+        addSidedMarker('natural', 'rgb(170, 170, 170)', 0);
         // for a coastline, the arrows are (somewhat unintuitively) on
         // the water side, so let's color them blue (with a gap) to
         // give a stronger indication