<?xml version="1.0" encoding="UTF-8" standalone="no"?><?Xpress productLine="ncc-clause" ?><clause id="_23f41fac-9a86-461f-be5c-658315c3e550" outputclass="ncc-clause"><meta><facet building="Class 1a"/><facet building="Class 10c"/></meta><sptc>S15C4</sptc><title id="_29d3ba45-19ec-4b6d-8010-c4f6e40ead29">Luminance contrast</title><archive-num>2019: Spec D3.6: 4</archive-num><subclause id="_2b867aca-938a-4afd-85cc-cb942dd3f36e" outputclass="subclause"><title id="_9b445f0e-16e6-4be7-92ce-e75c032faf89">SubClause</title><num>1</num><p>The following applies to <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1368_0.4.0.xml#_a01e03e9-1ea5-4a56-980c-85d53fd9cb5b" id="_c24651cc-d329-4320-9cd5-2a3bfc8f744e" scope="local" type="abcb-glossentry">luminance contrast</xref>:</p><ol outputclass="alpha"><li id="_e98ca40f-8bec-472d-a494-c5e755c3b700">The background, negative space, fill of a sign or border with a minimum width of 5 mm must have a <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1368_0.4.0.xml#_a01e03e9-1ea5-4a56-980c-85d53fd9cb5b" id="_56136514-253e-4163-8274-3e4e06f3bd79" scope="local" type="abcb-glossentry">luminance contrast</xref> with the surface on which it is mounted of not less than 30%.</li><li id="_145af281-ae67-429d-861e-9266f5d7cd64">Tactile characters, icons and symbols must have a minimum <xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1368_0.4.0.xml#_a01e03e9-1ea5-4a56-980c-85d53fd9cb5b" id="_f41fea6b-1b51-4b06-b59f-c8119c977bd9" scope="local" type="abcb-glossentry">luminance contrast</xref> of 30% to the surface on which the characters are mounted.</li><li id="_3048b8d3-4a74-4fd9-85a9-d611cfc7af49"><xref format="dita" href="/tmp/QppServer/Publishing/5e2c1f63-e589-4ce1-95e8-5c3e286a7aff/1368_0.4.0.xml#_a01e03e9-1ea5-4a56-980c-85d53fd9cb5b" id="_da7f2758-0e94-4ce6-8cea-b548a64d0e76" scope="local" type="abcb-glossentry">Luminance contrasts</xref> must be met under the lighting conditions in which the sign is to be located.</li></ol></subclause></clause>