Many colour names as used for trams were standardised in the 1930s by the British Colour Council and some of these have passed down into British Standard BS 381c, which contains such names as Signal red and PO (Post Office) red, and describes colours used for utility, municipal and military purposes. Many of the names used in British period tramway records tie up with colours in the standard. This colour chart shows the BS 381c shades for guidance only. Appearance will vary between different screens. For printing use a glossy paper with the printer set for the highest quality. Beneath the colour names are the RGB component values for each shade.

101 Sky blue 126; 168; 155	103 Peacock blue 47; 105; 114	104 Azure blue 52; 86; 120	105 Oxford blue 55; 65; 89	106 Royal blue 56; 57; 65	107 Strong blue 29; 118; 155	108 Aircraft blue 57; 72; 117
109 Middle blue / Anchusa 31; 96; 123	110 Roundel blue 61; 73; 113	112 Arctic blue / Fiesta Blue 90; 164; 178	113 Deep saxe blue 49; 103; 116	166 French blue 58; 103; 164	172 Pale roundel blue 146; 182; 209	175 Light French blue 64; 130; 181
210 Sky 173; 176; 151	216 Eau de Nil 163; 184; 134	217 Sea green 135; 161; 99	218 Grass green 85; 126; 70	220 Olive green 77; 86; 61	221 Brilliant green 66; 112; 66	223 Middle bronze green 78; 81; 65
224 Deep bronze green 68; 73; 62	225 Light Brunswick green 66; 99; 64	226 Mid Brunswick green 54; 83; 65	227 Deep Brunswick green 54; 75; 64	228 Emerald green / Viridian 18; 130; 96	241 Dark green 86; 86; 75	262 Bold green 8; 136; 92
267 Deep chrome green / Traffic green 61; 99; 78	280 Verdigris green 80; 149; 114	283 Aircraft grey green 116; 129; 107	284 Spruce green 107; 108; 91	285 NATO green 87; 86; 74	298 Olive drab 82; 80; 65	309 Canary yellow 240; 197; 38
310 Primrose 235; 212; 108	315 Grapefruit 242; 209; 111	320 Light brown 153; 107; 70	337 Very dark drab 86; 81; 72	352 Pale cream 231; 202; 144	353 Deep cream 249; 201; 123	355 Lemon 245; 178; 36
356 Golden yellow 251; 167; 0	358 Light buff 227; 172; 112	361 Light stone 195; 158; 117	363 Bold yellow 255; 188; 17	365 Vellum 218; 206; 174	366 Light beige 226; 197; 153	367 Manilla 232; 209; 175
369 Biscuit 240; 203; 162	380 Camouflage desert sand 176; 146; 130	384 Light straw 217; 195; 155	388 Beige 210; 182; 144	389 Camouflage beige 160; 150; 128	411 Middle brown 117; 82; 61	412 Dark brown 95; 69; 62
414 Golden brown 159; 100; 61	420 Dark camouflage desert sand 156; 129; 113	436 Dark camouflage brown 87; 76; 71	445 Venetian red 132; 71; 61	447 Salmon pink 224; 160; 135	453 Shell pink 224; 197; 195	454 Pale roundel red 206; 145; 147
499 Service brown 91; 75; 65	537 Signal red 192; 62; 57	538 Post Office red / Cherry 165; 57; 60	539 Currant red 178; 58; 60	541 Maroon 77; 59; 60	542 Ruby 134; 63; 90	557 Light orange 225; 114; 55
564 Bold red 191; 60; 55	568 Apricot 229; 133; 50	592 International orange 206; 79; 55	593 Rail red / Azo orange 213; 72; 55	626 Camouflage grey 149; 157; 158	627 Light aircraft grey 177; 177; 171	629 Dark camouflage grey 113; 122; 128
630 French grey 153; 157; 141	631 Light grey 145; 155; 148	632 Dark admiralty grey 103; 110; 113	637 Medium sea grey 136; 145; 148	638 Dark sea grey 103; 108; 113	642 Night 62; 63; 63	676 Light weatherwork grey 157; 169; 172
677 Dark weatherwork grey 103; 109; 116	692 Smoke grey 110; 140; 152	693 Aircraft grey 126; 133; 130	694 Dove grey 137; 142; 136	697 Light admiralty grey 164; 189; 186	796 Dark violet 109; 79; 115	797 Light violet 176; 157; 186

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