diff --git a/dither-image.js b/dither-image.js
index eeb0f7a..040ed5e 100644
--- a/dither-image.js
+++ b/dither-image.js
@@ -28,9 +28,9 @@ class RGB {
     }
 
     static fromHex(val) {
-        let r = val & 0xff;
-        let g = (val >> 8) & 0xff;
-        let b = (val >> 16) & 0xff;
+        let r = (val >>> 16) & 0xff;
+        let g = (val >>> 8) & 0xff;
+        let b = val & 0xff;
         return new RGB(r,g,b);
     }
 
@@ -618,7 +618,7 @@ async function convert(source, nbits) {
     // Start with all colors usable with regular CTIA modes
     // (not the 16-luminance special mode on GTIA)
     let allColors = [];
-    for (let i = 0; i < 0xff; i += 2) {
+    for (let i = 0; i < 256; i += 2) {
         allColors.push(i);
     }