SLD for DEM raster files with 13 colors

sld_dem_13_color_ramp

<?xml version="1.0" encoding="ISO-8859-1"?>
<StyledLayerDescriptor version="1.0.0" xmlns="http://www.opengis.net/sld" xmlns:ogc="http://www.opengis.net/ogc"
  xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
  <NamedLayer>
    <Name>gtopo</Name>
    <UserStyle>
      <Name>dem</Name>
      <Title>Simple DEM style</Title>
      <Abstract>Classic elevation color progression</Abstract>
      <FeatureTypeStyle>
        <Rule>
          <RasterSymbolizer>
            <Opacity>1.0</Opacity>
            <ColorMap>
              <ColorMapEntry color="#000000" quantity="0" label="nodata" opacity="0.0" />
              <ColorMapEntry color="#75B08D" quantity="0.01" label="values" />
              <ColorMapEntry color="#91BF9C" quantity="20"/>
              <ColorMapEntry color="#A9D3B1" quantity="50" label="values" />
              <ColorMapEntry color="#C8E1C1" quantity="100" label="values" />
              <ColorMapEntry color="#DCEBC8" quantity="150" label="values" />
              <ColorMapEntry color="#FFFCD4" quantity="200" label="values" />
              <ColorMapEntry color="#FFFCC8" quantity="250" label="values" />
              <ColorMapEntry color="#FFECC4" quantity="300" label="values" />
              <ColorMapEntry color="#FFDDAF" quantity="350" label="values" />
              <ColorMapEntry color="#FCCF9E" quantity="400" label="values" />
              <ColorMapEntry color="#FBC28E" quantity="500" label="values" />
              <ColorMapEntry color="#E4E8F4" quantity="700" label="values" />
              <ColorMapEntry color="#D6E1F2" quantity="900" label="values" />
            </ColorMap>
          </RasterSymbolizer>
        </Rule>
      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>

Simple and clean ! thanks for sharing.