Got it working fine.
Put this code in the column.
ADD COLUMN TO xBROWSE oBrw ;
聽 聽 聽 聽 聽 聽 SIZE 3 聽LEFT COLOR {||IF((glnew->account >= "1500" .AND. glnew->account <= "2040"),{RGB(0,0,0),RGB(128,0,0)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "2055" .AND. glnew->account <= "2500"),{RGB(0,0,0),RGB(0,0,128)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "2520" .AND. glnew->account <= "2625"),{RGB(0,0,0),RGB(0,128,0)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "2635" .AND. glnew->account <= "2720"),{RGB(0,0,0),RGB(0,128,128)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "2735" .AND. glnew->account <= "2820"),{RGB(0,0,0),RGB(128,0,0)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "2835" .AND. glnew->account <= "2920"),{RGB(0,0,0),RGB(128,128,0)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "3000" .AND. glnew->account <= "3353"),{RGB(0,0,0),RGB(0,0,255)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "3360" .AND. glnew->account <= "3480"),{RGB(0,0,0),RGB(0,0,255)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "3491" .AND. glnew->account <= "3544"),{RGB(0,0,0),RGB(255,255,0)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 IF((glnew->account >= "2935" .AND. glnew->account <= "2996"),{RGB(0,0,0),RGB(0,255,0)},;
聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 {RGB(0,0,0),RGB(255,255,255)}))))))))))}
Worked perfectly.
muchas gracias.