diff --git a/main/webapp/modules/core/about.html b/main/webapp/modules/core/about.html
index 0495a0c7f..e9a9b004e 100644
--- a/main/webapp/modules/core/about.html
+++ b/main/webapp/modules/core/about.html
@@ -60,7 +60,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   </head>
   <body>
     <div id="header">
-      <a id="app-home-button" href="./"><img alt="OpenRefine" src="images/logo-openrefine-new.png" height="29" /></a>
+      <a id="app-home-button" href="./"><img alt="OpenRefine" src="images/logo-openrefine-550.png" height="29" /></a>
     </div>
 
     <div id="body-info">
diff --git a/main/webapp/modules/core/error.vt b/main/webapp/modules/core/error.vt
index 09ed0adfe..16ee2eb1a 100644
--- a/main/webapp/modules/core/error.vt
+++ b/main/webapp/modules/core/error.vt
@@ -42,7 +42,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   </head>
   <body>
     <div id="header">
-      <a id="app-home-button" href="/"><img alt="OpenRefine" src="images/logo-openrefine-new.png" height="29" /></a>
+      <a id="app-home-button" href="/"><img alt="OpenRefine" src="images/logo-openrefine-550.png" height="29" /></a>
     </div>
     <div id="body-info">
       <h1>Something went wrong!</h1>
diff --git a/main/webapp/modules/core/index.vt b/main/webapp/modules/core/index.vt
index a0f928404..10041de24 100644
--- a/main/webapp/modules/core/index.vt
+++ b/main/webapp/modules/core/index.vt
@@ -44,7 +44,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 </head>
 <body>
   <div id="header">
-    <img alt="OpenRefine" src="images/logo-openrefine-slogan-black.png" height="29" />
+    <img alt="OpenRefine" src="images/logo-openrefine-550.png" height="29" />
+    <span id="slogan"></span>
   </div>
   
   <div id="left-panel" class="main-layout-panel"><div id="left-panel-body">
@@ -53,7 +54,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     
     <div id="project-links">
       <div id="logo-container">
-        <img alt="OpenRefine" src="images/logo-gem.png" height="65" />
+        <img alt="OpenRefine" src="images/logo-gem-126.png" height="65" />
         <div id="openrefine-version"></div>
       </div>
       <ul>
diff --git a/main/webapp/modules/core/preferences.vt b/main/webapp/modules/core/preferences.vt
index 1d222b615..38f92f5c8 100644
--- a/main/webapp/modules/core/preferences.vt
+++ b/main/webapp/modules/core/preferences.vt
@@ -43,7 +43,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 </head>
 <body>
   <div id="header">
-    <a id="app-home-button" href="./"><img alt="OpenRefine" src="images/logo-openrefine-new.png" height="29" /></a>
+    <a id="app-home-button" href="./"><img alt="OpenRefine" src="images/logo-openrefine-550.png" height="29" /></a>
   </div>
 
   <div id="body-info">
diff --git a/main/webapp/modules/core/project.vt b/main/webapp/modules/core/project.vt
index 2de1f4793..8393daf92 100644
--- a/main/webapp/modules/core/project.vt
+++ b/main/webapp/modules/core/project.vt
@@ -45,7 +45,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   </head>
   <body>
     <div id="header">
-      <a id="app-home-button" href="./"><img alt="OpenRefine" src="images/logo-openrefine-new.png" height="29" /></a>
+      <a id="app-home-button" href="./"><img alt="OpenRefine" src="images/logo-openrefine-550.png" height="29" /></a>
       <div id="project-title">
         <span id="project-name-button" class="app-path-section"></span>
         <a id="project-permalink-button" href="javascript:{}" class="secondary"></a>
diff --git a/main/webapp/modules/core/styles/project/sidebar.less b/main/webapp/modules/core/styles/project/sidebar.less
index e59bcaee2..6e66e2c3d 100644
--- a/main/webapp/modules/core/styles/project/sidebar.less
+++ b/main/webapp/modules/core/styles/project/sidebar.less
@@ -98,7 +98,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   padding: 20px 0 0 10px;
   font-size: 1.15em;
   font-weight: bold;
-  background: url(../../images/logo-gem.png) no-repeat top right;
+  background: url(../../images/logo-gem-126.png) no-repeat top right;
   background-size: 43px;
   }
 
