OS MASTERMAP KEY EXPLAINED - COLOUR CODES AND SYMBOLS

Support Mapserve

July 07, 2021

MasterMap Colour Key

The following table shows the RGB values for the area fills on a OS MasterMap colour view.

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