diff --git a/vimrc b/vimrc
index 6b13a36..cc72a2a 100644
--- a/vimrc
+++ b/vimrc
@@ -146,16 +146,8 @@ let g:syntastic_auto_loc_list = 1
 let g:syntastic_check_on_open = 1
 let g:syntastic_check_on_wq = 0
 
-" Change mode cursor color in xterm
-" Avoid spawning shell (silent !echo) which causes garbage output in some terminals.
-" t_EI is sent on VimEnter automatically when leaving insert mode context.
-if &term =~ "xterm-256color\\|rxvt"
-  let &t_SI = "\033]Pl00d7ff\033\\"
-  let &t_SR = "\033]Plf00000\033\\"
-  let &t_EI = "\033]Plff8708\033\\"
-  autocmd VimEnter * let &t_EI = "\033]Plff8708\033\\" | redraw
-  autocmd VimLeave * try | call writefile(["\033]Plc1ffc1\033\\"], '/dev/tty') | catch | endtry
-endif
+" Disable legacy terminal palette escape sequences.
+" They are not portable and may render as garbage characters in modern terminals.
 
 " Show tabs and trails
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