OS MASTERMAP KEY EXPLAINED - COLOUR CODES AND SYMBOLS
Written by Support Mapserve on
MasterMap Colour Key
The following table shows the RGB values for the area fills on an OS MasterMap map.
| COLOUR | HEADING | TYPE | R | G | B |
 |
Area Fills | Building | 255 | 220 | 175 |
 |
Area Fills | Structure | 255 | 215 | 195 |
 |
Area Fills | Glasshouse | 255 | 204 | 153 |
 |
Area Fills | Heritage | 255 | 220 | 175 |
 |
Area Fills | Manmade Surface | 210 | 210 | 170 |
 |
Area Fills | Multiple Surface (e.g., paved and natural environment) | 255 | 255 | 204 |
 |
Area Fills | Natural Environment | 220 | 255 | 190 |
 |
Area Fills | Natural Environment | 204 | 255 | 204 |
 |
Area Fills | Path | 204 | 204 | 204 |
 |
Area Fills | Step | 210 | 210 | 170 |
 |
Area Fills | Road | 215 | 215 | 215 |
 |
Area Fills | Rail | 204 | 204 | 204 |
 |
Area Fills | Water - Inland Water | 190 | 255 | 255 |
 |
Area Fills | Water - Foreshore | 204 | 255 | 255 |
 |
Area Fills | Water - Tidal | 190 | 255 | 255 |
 |
Area Fills | Unknown Fill (Traffic Islands, etc.) | 210 | 210 | 170 |
 |
Area Fills | Unclassified Fill (e.g. under development at time of capture) | 255 | 255 | 255 |
 |
Area Fills | Agricultural Land | 186 | 212 | 167 |
 |
Area Fills | Constructed Water | 152 | 204 | 217 |
 |
Area Fills | Sloping Masonry | 183 | 184 | 138 |
 |
Area Fills | Mud | 245 | 240 | 225 |
Symbols Key
Shared symbol geometry of Mastermap.
 |
Boulder |  |
Culvert |  |
Marsh |
 |
Non-Coniferous Tree |  |
Manmade Landform |  |
Scree |
 |
Circle |  |
Heath |  |
Rough Grass |
 |
Circle Fill |  |
Coppice |  |
Rock Fill |
 |
Coniferous Tree |  |
Heritage Site |  |
Orchard |
 |
Bench Mark |  |
Water Point |  |
Natural Landform |
 |
Air Height |  |
Triangulation Station |  |
Multi Vegetation |
 |
Boundary Mereing |  |
Spot Height |  |
Point |
 |
Boundary Post |  |
Bush |  |
Cross |
 |
Flow Arrow |  |
Road Flow |  |
Landform Disused |
Line styles
| STYLE | TYPE |
 |
Default |
 |
Default Dashed |
 |
Building |
 |
Building Overhead |
 |
Water Bold |
 |
Water Dashed |
 |
Water |
 |
Underground |
 |
Structure Overhead |
 |
Landform |
 |
Standard-gauge rail |
 |
Parish |
 |
Electoral |
 |
County |
 |
Parliamentary |
 |
District |
 |
Closing |
 |
Motorway |
 |
Primary Route |
 |
A Road |
 |
B Road |
 |
Minor Road |
 |
Local Street |
 |
Private Road Public Access |
 |
Private Road Restricted Access |
 |
Pedestrianised Street |
 |
Alley |
 |
Ferry |
 |
Carriageway |