nesdev.com

;Colour constants:
;Only the 52 unique/safe colours out of the 64 possible colours are included.
;Excluded colours are: The "forbidden greyscale" ($0D, $1D, $2D and $3D), the
;white $20 (since it's identical to $30) and all of the blacks that are
;identical to $0F (the $0E-scale, $1F, $2F and $3F).

;Colour scales goes from 0-3 (darker to lighter).
;Colour names should only be seen as a general guidance.
;For example waterblue and skyblue may both be used for water or sky,
;yellow may also contain orange and purple may contain pink and so on.

;-------------------------------------------------------------------------------
;Black and White

col_black = $0F ;classic black backdrop colour
col_white = $30 ;most commonly used white

;-------------------------------------------------------------------------------
;Grey

col_grey0  = $00 ;dark grey, DQ mountains
col_grey1  = $10 ;light grey, DQ mountains

;-------------------------------------------------------------------------------
;Blue

col_waterblue0  = $01 ;FF menu blue
col_waterblue1  = $11 ;DQ water/sky, Rockman armor (dark part)
col_waterblue2  = $21 ;FF sea, thief hair
col_waterblue3  = $31 ;FF sea

col_skyblue0    = $02
col_skyblue1    = $12 ;DQ hero blue armor
col_skyblue2    = $22 ;Super Mario Bros sky
col_skyblue3    = $32

col_plumblue0   = $03
col_plumblue1   = $13
col_plumblue2   = $23 ;Akumajou Dracula whip
col_plumblue3   = $33

col_purple0     = $04
col_purple1     = $14
col_purple2     = $24 ;Lady pink (Donkey Kong)
col_purple3     = $34 ;Akumajou Dracula whip

;-------------------------------------------------------------------------------
;Red

col_pink0      = $05
col_pink1      = $15
col_pink2      = $25 ;Lady pink (Family BASIC), cursor (Donkey Kong)
col_pink3      = $35 ;Lady skin (Family BASIC), DQ common skin

col_red0       = $06 ;Donkey Kong brown
col_red1       = $16 ;Mario red
col_red2       = $26
col_red3       = $36 ;Mario skin, FF common skin

col_yellow0    = $07
col_yellow1    = $17 ;Lady hair (Family BASIC), barrel brown (Donkey Kong)
col_yellow2    = $27 ;Samus yellow, Lady hair (Donkey Kong), DQ tree stem
col_yellow3    = $37 ;Zelda I ground, DQ desert/hill

col_brown0     = $08
col_brown1     = $18 ;FF monk hair, MetaFight bush
col_brown2     = $28 ;FF thief/monk skin, MetaFight bush
col_brown3     = $38 ;Rockman face and rockbuster beam

;-------------------------------------------------------------------------------
;Green

col_grassgreen0  = $09
col_grassgreen1  = $19 ;Luigi green, FF forest
col_grassgreen2  = $29 ;Link green (Zelda I), DQ grass, FF forest
col_grassgreen3  = $39

col_leafgreen0   = $0A ;MetaFight bush
col_leafgreen1   = $1A ;DQ tree/grass, FF grass/tree/forest
col_leafgreen2   = $2A ;Link green (Zelda II), R.O.B screen flash
col_leafgreen3   = $3A

col_bluegreen0   = $0B
col_bluegreen1   = $1B
col_bluegreen2   = $2B
col_bluegreen3   = $3B

col_turquoise0   = $0C ;DQ title screen backdrop, DQ slime
col_turquoise1   = $1C
col_turquoise2   = $2C ;FF stream, Rockman armor (light part)
col_turquoise3   = $3C

;-------------------------------------------------------------------------------
;64 Famicom colour chart:
;
;  ^    Hex:
;  |------------------
;  |    00  10  20  30  GREY ～ WHITE
;  |------------------
;  | B  01  11  21  31
;  | L  02  12  22  32
;  | U  03  13  23  33
;  | E  04  14  24  34
;  |------------------
;  | R  05  15  25  35
;  | E  06  16  26  36  EXISTING COLORS
;  H D  07  17  27  37
;  U    08  18  28  38
;  E------------------
;  | G  09  19  29  39
;  | R  0A  1A  2A  3A
;  | E  0B  1B  2B  3B
;  | E  0C  1C  2C  3C
;  |-N----------------
;  |    0D  1D  2D  3D <----- Forbidden greyscale (0D, 1D, 2D, 3D)
;  |    0E  1E  2E  3E  BLACK
;  |    0F  1F  2F  3F
;  |------------------
;  v
;   <-DARK-----LIGHT->