ALV的颜色分为行的颜色、列的颜色和CELL的颜色。
1.行的颜色
    需要在要显示的内表中添加一个字段放置颜色信息，比如COLOR(4) TYPE C .
    ITAB-COLOR = 'C700'.
    此外，还要根据采用的FM方式还是CLASS方式设置一下显示颜色

          FM方式： LS_LAYOUT-INFO_FIELDNAME = 'COLOR'.

   CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      IS_LAYOUT   = LS_LAYOUT
      IT_FIELDCAT = LT_FIELDCAT
    TABLES
      T_OUTTAB    = ITAB.

CLASS方式：  SLA-INFO_FNAME = 'COLOR'.
        CALL METHOD GO_GRID->SET_TABLE_FOR_FIRST_DISPLAY
    EXPORTING
      IS_VARIANT                    = GS_VARIANT
      I_SAVE                        = 'A'
   IS_LAYOUT                     = SLA
  CHANGING
      IT_OUTTAB                     = ITAB[]
      IT_FIELDCATALOG               = GT_FIELDCAT[]
    EXCEPTIONS
      INVALID_PARAMETER_COMBINATION = 1
      PROGRAM_ERROR                 = 2
      TOO_MANY_LINES                = 3
      OTHERS                        = 4.

2.列的颜色
设置FIELDCAT就可以了，如：TMP_FIELDCAT-EMPHASIZE = 'C500'.  "列的颜色

3.CELL的颜色
需要在要显示的内表添加一个字段：cellcolors TYPE lvc_t_scol.
  ls_cellcolor-color-col = '5' .
  ls_cellcolor-color-int = '1' .
  ls_cellcolor-color-inv = '1' .
  APPEND ls_cellcolor TO list-cellcolors .
  APPEND list.

例子：

REPORT  Z_BARRY_ALV_CL_COLOR2                   .

TYPES: BEGIN OF ilist_s ,
      name1(10),
      name2(10),
      name3(10),
 END OF ilist_s.
DATA: ilist TYPE STANDARD TABLE OF ilist_s  WITH HEADER LINE .

DATA: BEGIN OF list OCCURS 0.
        INCLUDE STRUCTURE ilist .
DATA: rowcolor(4) TYPE c ,
      cellcolors TYPE lvc_t_scol ,
      cellstyles TYPE lvc_t_styl ,
      celltext   TYPE alv_t_dtv .
DATA: END OF list.

DATA: ok_code LIKE sy-ucomm.
DATA: l_valid(1) TYPE c.
DATA: go_grid             TYPE REF TO cl_gui_alv_grid.

DATA: gt_fieldcat TYPE lvc_t_fcat,
      gs_fieldcat TYPE lvc_s_fcat,
      sla         TYPE lvc_s_layo.
DATA: ls_fieldcat TYPE lvc_s_fcat.
DATA ls_style. TYPE lvc_s_styl .
DATA ls_cellcolor TYPE lvc_s_scol .
DATA ls_celltext     TYPE alv_s_dtv .

*---------------------------------------------------------------------*
*       CLASS lcl_event_receiver DEFINITION
*---------------------------------------------------------------------*
*
*---------------------------------------------------------------------*
CLASS lcl_event_receiver DEFINITION.
  PUBLIC SECTION.
    METHODS handle_button_click
      FOR EVENT button_click OF cl_gui_alv_grid
      IMPORTING es_col_id
                es_row_no.
ENDCLASS.                    "lcl_event_receiver DEFINITION

*---------------------------------------------------------------------*
*       CLASS lcl_event_receiver IMPLEMENTATION
*---------------------------------------------------------------------*
*       ........                                                      *
*---------------------------------------------------------------------*
CLASS lcl_event_receiver IMPLEMENTATION.
  METHOD handle_button_click.
    PERFORM. test USING es_col_id
                       es_row_no.
  ENDMETHOD.                                                "handle_f4
ENDCLASS.                    "lcl_event_receiver IMPLEMENTATION

DATA: event_receiver TYPE REF TO lcl_event_receiver.
DATA: ii TYPE i .

START-OF-SELECTION.

CLEAR ls_fieldcat.
  ls_fieldcat-fieldname     = 'NAME1'.
  ls_fieldcat-scrtext_l     = 'NAME1'.
  APPEND ls_fieldcat TO  gt_fieldcat.
  CLEAR ls_fieldcat.
  ls_fieldcat-fieldname     = 'NAME2'.
  ls_fieldcat-scrtext_l     = 'NAME2'.
*    ls_fieldcat-emphasize = 'C610'.
  APPEND ls_fieldcat TO  gt_fieldcat.
  CLEAR ls_fieldcat.
  ls_fieldcat-fieldname     = 'NAME3'.
  ls_fieldcat-scrtext_l     = 'NAME3'.
  APPEND ls_fieldcat TO  gt_fieldcat.

list-name1 = 'A'.
  list-name2 = 'ARE'.
  ls_cellcolor-fname = 'NAME1' .
  ls_cellcolor-color-col = '5' .
  ls_cellcolor-color-int = '1' .
  ls_cellcolor-color-inv = '1' .
  APPEND ls_cellcolor TO list-cellcolors .
  APPEND list.
  list-name1 = 'AA'.
  list-name2 = 'BB'.
  ls_cellcolor-fname = 'NAME2' .
  ls_cellcolor-color-col = '3' .
  ls_cellcolor-color-int = '1' .
  ls_cellcolor-color-inv = '1' .
  APPEND ls_cellcolor TO list-cellcolors .
  APPEND list.
  list-name1 = 'HOW'.
  list-name2 = 'ARE'.
  list-rowcolor = 'C410'.
  ls_style-fieldname = 'NAME3' .
  ls_style-style. = cl_gui_alv_grid=>mc_style_button .
*  ls_style-style. = cl_gui_alv_grid=>MC_STYLE_HOTSPOT.
  APPEND ls_style. TO list-cellstyles .
  ls_celltext-buttoncell = 'TEST'.
  APPEND ls_celltext TO list-celltext.
  APPEND list.

sla-stylefname = 'CELLSTYLES'.
  sla-ctab_fname = 'CELLCOLORS'.
  sla-info_fname = 'ROWCOLOR'.

WRITE 'a'.
  CREATE OBJECT go_grid
        EXPORTING
          i_parent = cl_gui_container=>screen0.

CREATE OBJECT event_receiver.
  SET HANDLER event_receiver->handle_button_click FOR go_grid.

CALL METHOD go_grid->set_table_for_first_display
    EXPORTING
*      is_variant                    = gs_variant
      i_save                        = 'A'
      is_layout                     = sla
    CHANGING
      it_outtab                     = list[]
      it_fieldcatalog               = gt_fieldcat[]
    EXCEPTIONS
      invalid_parameter_combination = 1
      program_error                 = 2
      too_many_lines                = 3
      OTHERS                        = 4.
*&---------------------------------------------------------------------*
*&      Form. test
*&---------------------------------------------------------------------*
FORM. test  USING    p_es_col_id TYPE lvc_s_col
                    p_es_row_no TYPE lvc_s_roid.
  MESSAGE i899(fi) WITH p_es_col_id-fieldname p_es_row_no-row_id .
ENDFORM.                    " test