Key:building:colour
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 building:colour
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| Description |
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Indicates colour of the building. 
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| Group: buildings |
| Used on these elements |
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| Requires |
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| Useful combination |
| Status: de facto |
| Tools for this tag |
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The colour of the facade of a building or building part.
Mostly used for 3D building visualization. Note, that the interpretation of colour names differs between different 3D rendering applications.
It should be used together with the building=* or building:part=* tag.
Tagging
- The colour should be given in hexadecimal, preceded by a # sign, e.g.
#FFFFFF. - You can use a descriptive name for the basic colours, e.g. white, red. However, the interpretation of the colour given in this form may vary among different 3D renderers. See this page for common values.
Example values
| Building material or appearance | Colour | Photo | |
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| white | #FFFFFF | .jpg)
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| brick, brick-red colour | #E96B39 | 
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| dark brick | #CF2F2F | 
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| dirty brick | #7F0C0C | 
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| limestone | #F6F0D0 | 
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| stones | #7A7D80 | 
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| light beige | #CABC91 | 
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Tips
- It is not always easy to choose a colour from a photo. Photos are of varying quality and colours can look different in different photos.
Colour differences of the same building in different photos 
Colour differences of the same building at different hours 
Early in the morning (too much yellow colour) Sunny noon (too strong contrasts) Late morning, light overcast
- Beware of optical illusions – a colour in contrast with other colours can look different than it does on its own. Examples:
Both the yellow dots and the backgrounds of the fields on which they are located have identical colours. 
The two small squares are exactly the same colour, but the right one looks darker.
- Instead of this tag, you can use building:material=*, based on which 3D renderers often assign a colour.
Colour selection tools
- Color Picker – reading colour from a photograph
- Hex Color Picker – Hex to colour picker and image colour picker
- Sass Color Generator – selecting a darker/lighter colour for the specified colour
- Encycolorpedia
- Lch and Lab colour and gradient picker
- HTML Colors
See also
- roof:colour=*
- building:material=*
- building:levels=*
- height=*
- colour=*
- Simple 3D Buildings – core tags for 3D buildings
- 3D tagging – collection of additional 3D tags and related ideas