diff --git a/src/image.c b/src/image.c
index f7a2f5f..46fa2a4 100644
--- a/src/image.c
+++ b/src/image.c
@@ -57,9 +57,9 @@ const char *image_init(image_t *self, const char *filename) {
   int i;
   for (i = 0; i < width * height; i++) {
     unsigned char *p = data32 + i * 4;
-    int b = p[0];
+    int r = p[0];
     int g = p[1];
-    int r = p[2];
+    int b = p[2];
     int a = p[3];
     int idx = palette_colorIdx(r, g, b);
     if (idx < 0) {
diff --git a/src/palette.c b/src/palette.c
index af2a733..3892a5a 100644
--- a/src/palette.c
+++ b/src/palette.c
@@ -44,7 +44,7 @@ int palette_colorIdx(int r, int g, int b) {
   palette_init();
 
   /* Make 18bit rgb color (6bits per-channel) from 8bit channels  */
-  unsigned color = ((r & 0xfc) << 10) | ((g & 0xfc) << 4) | ((b & 0xfc) >> 2);
+  unsigned color = ((b & 0xfc) << 10) | ((g & 0xfc) << 4) | ((r & 0xfc) >> 2);
 
   /* Hash color */
   unsigned h = hash(&color, sizeof(color));