These hex values are non official approximate values intended to simulate the BS 381 in HTML.More details https://www.e-paint.co.uk/BS381%20Colourchart.asp
BS381 102
Turquoise blue
#5B9291
BS381 103
Peacock blue
#3B6879
BS381 104
Azure blue
#264D7E
BS381 105
Oxford blue
#1F3057
BS381 106
Royal blue
#2A283D
BS381 107
Strong blue
#3A73A9
BS381 108
Aircraft blue
#173679
BS381 109
Middle blue / Anchusa
#1C5680
BS381 110
Roundel blue
#2C3E75
BS381 111
Pale Blue
#8CC5BB
BS381 112
Arctic blue / Fiesta Blue
#78ADC2
BS381 113
Deep saxe blue
#3F687D
BS381 114
Rail blue
#1F4B61
BS381 115
Cobalt blue
#5F88C1
BS381 166
French blue
#2458AF
BS381 169
Traffic blue
#135B75
BS381 172
Pale roundel blue
#A7C6EB
BS381 174
Orient Blue
#64A0AA
BS381 175
Light French blue
#4F81C5
BS381 216
Eau de Nil
#BCD890
BS381 217
Sea green
#96BF65
BS381 218
Grass green
#698B47
BS381 219
Sage Green
#757639
BS381 220
Olive green
#4B5729
BS381 221
Brilliant green
#507D3A
BS381 222
Light bronze green
#6A7031
BS381 223
Middle bronze green
#49523A
BS381 224
Deep bronze green
#3E4630
BS381 225
Light Brunswick green
#406A28
BS381 226
Mid Brunswick green
#33533B
BS381 227
Deep Brunswick green
#254432
BS381 228
Emerald green / Viridian
#428B64
BS381 241
Dark green
#4F5241
BS381 262
Bold green
#44945E
BS381 267
Deep chrome green / Traffic green
#476A4C
BS381 275
Opaline green
#8FC693
BS381 276
Lincon green
#2E4C1E
BS381 277
Cypress green
#364A20
BS381 278
Light olive green
#87965A
BS381 279
Steel furniture green
#3B3629
BS381 280
Verdigris green
#68AB77
BS381 282
Forest green
#506B52
BS381 283
Aircraft grey green
#7E8F6E
BS381 284
Spruce green
#6B6F5A
BS381 285
NATO green
#5F5C4B
BS381 298
Olive drab
#4F5138
BS381 309
Canary yellow
#FEEC04
BS381 315
Grapefruit
#FEF96A
BS381 320
Light brown
#9E7339
BS381 337
Very dark drab
#4C4A3C
BS381 350
Dark earth
#7B6B4F
BS381 352
Pale cream
#FCED96
BS381 353
Deep cream
#FDF07A
BS381 356
Golden yellow
#FCC808
BS381 358
Light buff
#F6C870
BS381 359
Middle buff
#DBAC50
BS381 361
Light stone
#D4B97D
BS381 362
Middle stone
#AC7C42
BS381 363
Bold yellow
#FDE706
BS381 364
Portland stone
#CEC093
BS381 366
Light beige
#F5E7A1
BS381 368
Traffic Yellow
#DD7B00
BS381 380
Camouflage desert sand
#BBA38A
BS381 384
Light straw
#EEDFA5
BS381 385
Light biscuit
#E8C88F
BS381 386
Champagne
#E6C18D
BS381 387
Sunrise / Sunshine
#CFB48A
BS381 389
Camouflage beige
#B2A788
BS381 397
Jasmine Yellow
#F3D163
BS381 410
Light brown
#93612B
BS381 411
Middle brown
#74542F
BS381 412
Dark brown
#5C422E
BS381 413
Nut brown
#402D21
BS381 414
Golden brown
#A86C29
BS381 415
Imperial brown
#61361E
BS381 420
Dark camouflage desert sand
#A89177
BS381 435
Camouflage red
#845B4D
BS381 436
Dark camouflage brown
#564B47
BS381 437
Very dark drab
#464334
BS381 439
Orange brown
#753B1E
BS381 444
Terracotta
#A65341
BS381 445
Venetian red
#83422B
BS381 446
Red oxide
#774430
BS381 447
Salmon pink
#F3B28B
BS381 448
Deep Indian red
#67403A
BS381 449
Light purple brown
#693B3F
BS381 450
Dark earth
#745F46
BS381 452
Dark crimson
#613339
BS381 453
Shell pink
#FBDED6
BS381 454
Pale roundel red
#E8A1A2
BS381 460
Deep Buff
#BD8F56
BS381 489
Leaf brown
#8D5B41
BS381 490
Beech brown
#573320
BS381 499
Service brown
#59493E
BS381 537
Signal red
#DD3420
BS381 538
Post office red / Cherry
#C41C22
BS381 539
Currant red
#D21E2B
BS381 557
Light orange
#EF841E
BS381 570
Traffic red
#A83C19
BS381 591
Deep orange
#D04E09
BS381 592
International orange
#E45523
BS381 593
Rail red / Azo orange
#F24816
BS381 626
Camouflage grey
#A0A9AA
BS381 627
Light aircraft grey
#BEC0B8
BS381 628
Silver grey
#9D9D7E
BS381 629
Dark camouflage grey
#7A838B
BS381 630
French grey
#A5AD98
BS381 631
Light grey
#9AAA9F
BS381 632
Dark admiralty grey
#6B7477
BS381 633
RAF blue-grey
#424C53
BS381 637
Medium sea grey
#8E9B9C
BS381 638
Dark sea grey
#6C7377
BS381 639
Light slate grey
#667563
BS381 640
Extra dark sea grey
#566164
BS381 641
Dark green
#484837
BS381 671
Middle graphite
#4E5355
BS381 676
Light weatherwork grey
#A9B7B9
BS381 677
Dark weatherwork grey
#676F76
BS381 692
Smoke grey
#7B93A3
BS381 693
Aircraft grey
#88918D
BS381 694
Dove grey
#909A92
BS381 697
Light admiralty grey
#B6D3CC
BS381 796
Dark violet
#6E4A75
BS381 797
Light violet
#C9A8CE