--- title: "Road Sign Colours Meaning | UK Road Signs | Fast Track" url: https://fasttrackdrivinglessons.co.uk/theory/road-signs/sign-colours-and-backing-boards description: "Understand what sign colours and backing boards mean on UK roads and how this system is tested in the DVSA theory test." lang: en --- # Sign colours and backing boards — UK road sign system The background colour of a sign and any backing board it sits on give extra clues about the road type and urgency of the message. Image: Sign colours and backing boards — varies rectangle UK road sign (https://fasttrackdrivinglessons.co.uk/signs/sign-colours-and-backing-boards.svg) Beyond shape, the colour of a road sign and any backing board it is mounted on provide further information about the road or the message. Learning this colour system helps drivers quickly judge what type of road they are on and how urgent a message is. ## What this sign system means Blue backgrounds are used for motorway signs and mandatory instructions, green for primary routes, and white or black for local roads. Yellow backing boards are sometimes added behind existing signs to draw extra attention to a temporary or particularly important hazard, and are common near schools or new road layouts. ## What to do when you see it Use the background colour to judge the type of road or route, and treat signs with a yellow backing board as needing particular attention. - Identify motorway routes by their blue background - Identify primary routes by their green background - Treat a yellow backing board as a sign that extra caution is needed - Remember that colour supports but does not replace the shape rules for orders, warnings and information ## How this sign is tested The theory test may ask you to match sign colours to road types or explain the purpose of a yellow backing board. Questions can combine shape and colour knowledge, for example distinguishing a blue motorway direction sign from a blue mandatory circle. ## Common mistakes Learners sometimes rely on colour alone and forget to consider the shape, leading to confusion between similar coloured signs. Overlooking a yellow backing board, which is meant to highlight an unusual or temporary hazard, is another common oversight. ## Test yourself on this one Road and traffic signs is the biggest category in the question bank with 102 questions, and signs turn up inside other categories too. Work through them free, no sign-up needed. Practise road sign questions (https://fasttrackdrivinglessons.co.uk/theory/practice) ## Frequently asked questions What does a blue background mean on a sign It usually indicates a motorway route or, on a circular sign, a mandatory instruction. What is a yellow backing board for It is added behind a sign to draw extra attention to it, often for temporary hazards or new layouts. Does colour alone tell me what a sign means No, colour works together with shape, so both must be considered to correctly interpret a sign. ## Passed your theory? Get the practical booked Your theory certificate lasts two years. Most learners who use it quickly do it with an intensive course — a block of hours with a DVSA approved instructor and a practical test at the end, instead of one lesson a week for months. Intensive course prices: https://fasttrackdrivinglessons.co.uk/pricing All courses: https://fasttrackdrivinglessons.co.uk/courses Crash courses: https://fasttrackdrivinglessons.co.uk/crash-courses Automatic lessons: https://fasttrackdrivinglessons.co.uk/driving-lessons/automatic Areas we cover: https://fasttrackdrivinglessons.co.uk/driving-lessons-in Driving test centres: https://fasttrackdrivinglessons.co.uk/driving-test-centres How it works: https://fasttrackdrivinglessons.co.uk/how-it-works Test pass guarantee: https://fasttrackdrivinglessons.co.uk/test-pass-guarantee ## Structured data ```json [ { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://fasttrackdrivinglessons.co.uk/#organization", "name": "Fast Track Driving Lessons", "url": "https://fasttrackdrivinglessons.co.uk/", "email": "info@fasttrackdrivinglessons.co.uk", "areaServed": "GB", "description": "Intensive driving courses and driving lessons across the UK with DVSA-approved instructors." }, { "@type": "WebSite", "@id": "https://fasttrackdrivinglessons.co.uk/#website", "url": "https://fasttrackdrivinglessons.co.uk/", "name": "Fast Track Driving Lessons", "publisher": { "@id": "https://fasttrackdrivinglessons.co.uk/#organization" }, "potentialAction": { "@type": "SearchAction", "target": { "@type": "EntryPoint", "urlTemplate": "https://fasttrackdrivinglessons.co.uk/search?q={search_term_string}" }, "query-input": "required name=search_term_string" } } ] }, { "@context": "https://schema.org", "@graph": [ { "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://fasttrackdrivinglessons.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Theory test", "item": "https://fasttrackdrivinglessons.co.uk/theory" }, { "@type": "ListItem", "position": 3, "name": "Road signs", "item": "https://fasttrackdrivinglessons.co.uk/theory/road-signs" }, { "@type": "ListItem", "position": 4, "name": "Sign colours and backing boards — UK road sign system" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What does a blue background mean on a sign", "acceptedAnswer": { "@type": "Answer", "text": "It usually indicates a motorway route or, on a circular sign, a mandatory instruction." } }, { "@type": "Question", "name": "What is a yellow backing board for", "acceptedAnswer": { "@type": "Answer", "text": "It is added behind a sign to draw extra attention to it, often for temporary hazards or new layouts." } }, { "@type": "Question", "name": "Does colour alone tell me what a sign means", "acceptedAnswer": { "@type": "Answer", "text": "No, colour works together with shape, so both must be considered to correctly interpret a sign." } } ] } ] } ] ```