Lua Color Table
Produces html and a GIMP palette file you can use to import into an old school tool.
-- Example Usage: lua colortable.lua > palette.html
-- By The Weathered Hiker
-- Create an HTML table with boxes showing the color and color value in hex and decimal
local maxCols=8
local colors={
"000000","242424","494949","6D6D6D","929292","B6B6B6","DBDBDB","FFFFFF",
"200000","400000","600000","800000","A00000","C00000","E00000","FF0000", -- red
"002000","004000","006000","008000","00A000","00C000","00E000","00FF00", -- green
"202000","404000","606000","808000","A0A000","C0C000","E0E000","FFFF00", -- yellow
"200020","400040","600060","800080","A000A0","C000C0","E000E0","FF00FF", -- purple
"002020","004040","006060","008080","00A0A0","00C0C0","00E0E0","00FFFF", -- cyan
"000020","000040","000060","000080","0000A0","0000C0","0000E0","0000FF", -- blue
}
-- Convert a hex color like "FFFFFF" to 255,255,255. Also treats "FFF" or "111" as "FFFFFF" or "111111".
function hex2decColor(hex)
assert(string.len(hex)==3 or string.len(hex)==6,"Hex value must be 3 or 6 characters long") -- must be in format "FFF" or "FFFFFF"
if string.len(hex)==6 then
r=tonumber(string.sub(hex,1,2),16)
g=tonumber(string.sub(hex,3,4),16)
b=tonumber(string.sub(hex,5,6),16)
elseif string.len(hex)==3 then
r=tonumber(string.sub(hex,1,1)..string.sub(hex,1,1),16)
g=tonumber(string.sub(hex,2,2)..string.sub(hex,2,2),16)
b=tonumber(string.sub(hex,3,3)..string.sub(hex,3,3),16)
end
return r,g,b
end
local htmlHead=<html>
<head>
<style>
p {
background-color: rgba(200,200,200,0.3);
color: #000000;
border: 0px solid black;
text-transform: uppercase;
padding: 2px;
font-size: small;
}
table {
border: 2px solid black;
}
td {
vertical-align: bottom;
border: 0px solid black;
width: 100px;
height: 100px;
}
</style>
</head>
<body>
local htmlFoot="</body></html>"
print(htmlHead)
print("<h1>Game Palette</h1>")
print(string.format("<table>"))
i=1
while i<#colors do
print(" <tr>")
for td=1,maxCols do
if i<=#colors then
local r,g,b=hex2decColor(colors[i])
print(string.format(" <td bgcolor='#%s'><p>%s<br/>%d,%d,%d</p></td>",colors[i],colors[i],r,g,b))
i=i+1
end
end
print(" </tr>")
end
print("</table>")
-- print gimp palette
print("<pre>")
print("GIMP Palette")
print("Name: LeeRGB")
print(string.format("Colors: %d",#colors))
print("#")
for i,c in pairs(colors) do
local r,g,b=hex2decColor(c)
print(string.format("%3d\t%3d\t%3d\t#%s",r,g,b,c))
end
print("</pre>")
print(htmlFoot)
And produces a color table with hex and RGB colors:
Along with the GIMP palette:
GIMP Palette
Name: LeeRGB
Colors: 56
#
0 0 0 #000000
36 36 36 #242424
73 73 73 #494949
109 109 109 #6D6D6D
146 146 146 #929292
182 182 182 #B6B6B6
219 219 219 #DBDBDB
255 255 255 #FFFFFF
32 0 0 #200000
64 0 0 #400000
96 0 0 #600000
128 0 0 #800000
160 0 0 #A00000
192 0 0 #C00000
224 0 0 #E00000
255 0 0 #FF0000
0 32 0 #002000
0 64 0 #004000
0 96 0 #006000
0 128 0 #008000
0 160 0 #00A000
0 192 0 #00C000
0 224 0 #00E000
0 255 0 #00FF00
32 32 0 #202000
64 64 0 #404000
96 96 0 #606000
128 128 0 #808000
160 160 0 #A0A000
192 192 0 #C0C000
224 224 0 #E0E000
255 255 0 #FFFF00
32 0 32 #200020
64 0 64 #400040
96 0 96 #600060
128 0 128 #800080
160 0 160 #A000A0
192 0 192 #C000C0
224 0 224 #E000E0
255 0 255 #FF00FF
0 32 32 #002020
0 64 64 #004040
0 96 96 #006060
0 128 128 #008080
0 160 160 #00A0A0
0 192 192 #00C0C0
0 224 224 #00E0E0
0 255 255 #00FFFF
0 0 32 #000020
0 0 64 #000040
0 0 96 #000060
0 0 128 #000080
0 0 160 #0000A0
0 0 192 #0000C0
0 0 224 #0000E0
0 0 255 #0000FF