Robert plays his guitar tuned down a half step..the other tab for this song is the right chords..but this is the way the band plays it...       

half-step down

            Cm           Cm7         Cm/A            G#          G
|------------3------------3-----------3--------------4-----------3---------
|------------4------------4-----------4--------------4-----------3---------
|------------5------------3-----------5--------------5-----------4---------
|------------5------------5-----------5--------------6-----------5---------
|------------3------------3-----------0--------------6-----------5---------
|----------------------------------------------------4-----------3----------



Cm               Cm7           Cm/A
The colors have built up in my mind
          G#        G         Cm
They're bleeding through my heart
             Cm7             Cm/A
Well nobody knows that they exist
G#            G      Cm 
Look at my bursting veins
           Cm7           Cm/A
Now do you see the red in me
G#              G            C
Well this is a sign for the end

              D#m         Dm
Well only the end of the red
G
Will show you my blue side
C            D#m         Dm
And only the end of the red
       G 
Will show you my blue side

chords:
    C          D#m             Dm 
    3           6               5
    5           7               6
    5           8               7
    5           8               7
    3           6               5

The other chords are tabbed at the intro..