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Colours

All of these colours (except for the generic silver, rust and greys) are based on prototype photo samples. I take a 16 x 16 pixel sample from 5 to 10 properly exposed photos showing clean, unfaded paint, and determine the combined average RGB values of all the samples. I then increase the saturation very slightly and adjust the luminosity (slightly lower for dark colours and slightly higher for lighter colours) to account for dust or glare. If I find a very good online paint sample, I give extra weight to the RGB values of that sample.

These colours are used only in the 1:18 drawings. Most of them are different from the ones I used in the 1:55 and 1:36 drawings, for which I matched the colours simply by eye.

In addition to changes caused by dirt or fading, some prototype colours varied significantly depending on the era and location the painting took place. I do not include these variations unless the colour change was intentional.

Railroad R G B  Sample 
- Grey 1 - (bare metal, lights) 192 192 192  
 
- Grey 2 - (bare metal) 159 159 159  
 
- Grey 3 - (windows, lights) 128 128 128  
 
- Grey 4 - (underframe, rubber) 63 63 63  
 
- Rust - 100 66 36  
 
- Silver - 221 223 228  
 
- Yellow Reflective Tape - 252 190 4  
 
AA - Grey (1) 125 125 125  
 
AA - Red 215 0 5  
 
AA - Yellow 246 191 51  
 
AMTK - Blue (Phase V) 10 80 125  
 
AMTK - Grey (Phase V) 83 93 94  
 
APA - Green 13 138 72  
 
ATSF - Blue 20 21 63  
 
ATSF - Red 191 32 32  
 
ATSF - Yellow 248 191 57  
 
BN - Cascade Green 39 141 65  
 
BNSF - Green 21 46 28  
 
BNSF - Orange 237 134 31  
 
BNSF - Yellow 252 210 4  
 
CDTX - Blue 12 29 73  
 
CDTX - Orange 255 102 0  
 
CDTX - Yellow 252 190 4  
 
CEFX - Blue 12 117 215  
 
CEFX - Green 57 164 105  
 
CEFX - Grey 125 125 125  
 
Chessie - Blue 20 20 44  
 
Chessie - Orange 237 83 24  
 
Chessie - Yellow 253 196 45  
 
CMQ - Blue 19 162 198  
 
CMQ - Grey 145 162 175  
 
CMQ - Orange (2) 249 76 11  
 
CN - Grey #17 235 235 235  
 
CN - Orange #11 243 65 33  
 
CP - Action Red 252 38 20  
 
CR - Blue 0 107 177  
 
CSXT - Blue 20 66 112  
 
CSXT - Yellow (YN3) 247 191 62  
 
DMVW - Grey 106 111 106  
 
DMVW - Orange 248 107 22  
 
DTI - Orange 235 80 13  
 
DTI/DWP/GTW - Blue 5 102 167  
 
DTI/DWP/GTW - Orange #11 243 65 33  
 
EMDX - Orange (GP35, DD35) (3) 215 49 26  
 
Family Lines / SBD - Grey 114 126 136  
 
Family Lines / SBD - Red 220 45 35  
 
Family Lines / SBD - Yellow 247 194 72  
 
FWWR - Blue 22 68 143  
 
FWWR - Red 204 21 26  
 
FWWR - Yellow 245 191 27  
 
IC - Grey 68 75 85  
 
IC - Orange 234 81 21  
 
MKT - Green 52 118 75  
 
MKT - Yellow 253 225 66  
 
NS - Yellow 255 204 0  
 
PW - Brown 44 30 27  
 
PW - Orange 242 47 19  
 
RI - Maroon 120 31 29  
 
RI - Red 202 31 21  
 
RI - Yellow 251 201 68  
 
SLSF - Mandarin Orange 215 49 26  
 
SP/SSW - Grey 92 94 100  
 
SP/SSW - Scarlet 244 21 21  
 
UP - Armor Yellow 246 191 51  
 
UP - Harbor Mist Gray 125 125 125  
 
UP - Signal Red 215 0 5  
 
VIA - Blue 23 49 125  
 
VIA - Grey 181 187 189  
 
VIA - Teal (Renaissance) 23 96 108  
 
VIA - Yellow 249 184 49  
 
VIA - Yellow (Renaissance) 245 172 37  
 

Notes

  1. Same values used for AA and UP colours
  2. BAR heritage
  3. Same values used for EMDX orange and SLSF Mandarin Orange
 Copyright © Michael Eby - Last updated 2017-05-16