Accessibility
When the text on a page and its background have a very low contrast ratio (i.e. they almost blend in colour and brightness), it is difficult to read.
Reading speed and comprehension can be compromised, for example, when writing in a colour such as light grey on a white background.
In addition to creating difficulties for visually impaired users, this makes the experience of all users negative, even and especially if they are visiting the site in a place with lots of light (e.g. outdoors).For example, if you have ever read something on your mobile device outdoors, you have probably experienced the need for text with sufficient contrast.
If the page's text and the background have a low contrast ratio, SeoChecker will notify it.
The criterion used by SeoChecker to perform the score is 1.4.3 from WCAG 2.1, that indicates these parameters:
In order to set up a valid contrast ratio, we recommend you to use the SeoChecker's Color Contrast Checker tool.
Learn more about Accessibility
On page SEO performance and page checkup.
Over 300 parameters for the deeper page analysis.
Share this Guide
Did you like it? Share it!
Web tools for modern developers. Try these one!
Over 50 generators, builders and validators to improve your SEO and web performances
Images
Upload yours images and get the color palette. Get color palette for all dominant colors identified in your uploaded image.
Tester and validators
Check color contrast ratio WCAG 2 AA of your pages. Check if your color scheme meet the WCAG 2 AA contrast ratio thresholds.
Test your Web Vitals metrics, score and diagnostic. Measures Google Core Web Vitals LCP, FID, CLS, TTFB, FCP, TTI, TBT and more.
Validate your Css file sheet with W3C validation Service. Check if the markup of your Cascading style Sheet document is W3C compliant.
Builders and generators
Build your Service Workers and enrich user experience. Transform your website in a huge Progressive Web App and enrich users experience.
Server and proxy
Retrieve your Public IP Address and geolocation. Get your IP address, ISP-Organization information and geolocation data for free.
Google
Track your site’s position in Google search results for specific keywords, country and languages. Find out your position for specific keywords.
Check SEO performance and page checkup. Over 250 parameters for the deeper page analysis. Find out more about the performance of your website.