Denshi Jisho — Online Japanese dictionary

あかい 1: red;
2: Red (i.e. communist)
Out-dated kanji, Adjective 
しゃど red ocher
Noun 
赤土 あかつち red clay; tuff loam; dark-red paint
Noun 
しゃがん ruddy face
Noun 
しゃぐま 1: yak hair dyed red; red hair;
2: frizzled fake hair; curly fake hair
Noun 
黒い あかぐろい dark red; dark brown; reddish brown
Out-dated kanji, Adjective 

You can also

Look up kanji details for 赭 あかつち.

Try a Yahoo Jisho search for 赭 あかつち .
Try a Goo Jisho search for 赭 あかつち .
Try a Google search for 赭 あかつち .