Color Tool 2.0.1 Alpha
EasyRGB - The first RGB and COLOR search engine on the Web!
RGB and COLOR search engine. All you need to match your RGB and color data with paint, ink, color standards and commercial color collections.
Background Image Maker
Fiberglass Lamp Shades: 1950s/Retro - Colors
Corporate Identity Catalogue - A Website about Corporate Identity
BREAKER DESIGN
Color Scheme tool — by Steel dolphin Creative
4096 Color Wheel Version 2.1
Color and Contrast.com
Color & Contrast is an interactive guide to color for designers.
Getting WCAG color contrast right
Actionable tips on how to nail WCAG 2.1 color compliance.
Randoma11y
Get random, accessible color combinations
Designing the Terminal for color accessibility - Bloomberg UX
For users with color vision deficiencies, certain color combinations can have detrimental effects on their use of the Bloomberg Terminal.
color-contrast()
Before color-contrast(), stylesheet authors needed to know accessible colors ahead of time. Often a palette would show black or white text on a color swatch, to indicate to a user of the color system which text color would be needed to properly contrast with that swatch.
Dan Hollick 🇿🇦 on Twitter
WCAG 3 will use a new color contrast method called APCA (Advanced Perceptual Contrast Algorithm).It's a big improvement over the current system but there are a lot of changes to get your head around.🧵 pic.twitter.com/yLbujn3hG4— Dan Hollick 🇿🇦 (@DanHollick) December 9, 2021
Don’t rely only on tools to pick an accessible color combination
How can we make sure to design with accessible colors?
Accessible color for design systems just got easier | by Nate Baldwin | May, 2022 | Medium
Contrast Ratio Math and Related Visual Issues · Issue #695 · w3c/wcag · GitHub
Perceived Brightness: an Essential Concept for UI Design | by Gonçalo Dias | UX Collective
Look at the image above. Don’t you feel some colors are brighter than others? For example, between the yellow and blue: which is brighter?
APCA Simple Version
The APCA Advanced Perceptual Contrast Algorithim SIMPLE VERSION.
W3C Accessibility Guidelines (WCAG) 3.0
The W3C Accessibility Guidelines (WCAG) 3.0 provide a wide range of recommendations for making web content more accessible to users with disabilities. Following these guidelines will address many of the needs of users with blindness, low vision and other vision impairments; deafness and hearing loss; limited movement and dexterity; speech disabilities; sensory disorders; cognitive and learning disabilities; and combinations of these. These guidelines address accessibility of web content on desktops, laptops, tablets, mobile devices, wearable devices, and other web of things devices. They address various types of web content including static content, interactive content, visual and auditory media, and virtual and augmented reality. The guidelines also address related web tools such as user agents (browsers and assistive technologies), content management systems, authoring tools, and testing tools.
Accessible Palette: stop using HSL for color systems | Wildbit
Accessible Palette is an app for building color systems with consistent lightness and predictable contrast ratios across color levels.
Pika
… an easy to use, open-source, native colour picker for macOS. Pika makes it simple to quickly find colours onscreen, in the format you need, so you can get on with being a speedy, successful designer.
Paul Tol's Notes
This site shows such schemes, developed with the help of mathematical descriptions of colour differences and the two main types of colour-blind vision. A colour scheme should reflect the type of data shown.
The Myths of Color Contrast Accessibility
Accessible Color Generator
Color.review
Colors that look and work great for everyone
Colour Contrast Analyser (CCA)
The Colour Contrast Analyser (CCA) helps you determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators.
Designing UI with Color Blind Users in Mind - Secret Stache Media
ColorSafe
Empowering designers with beautiful and accessible color palettes based on WCAG Guidelines of text and background contrast ratios.
Colour Contrast Check
For people with impaired vision, we are required to ensure that there is a minimum amount of contrast between our foreground and background colors. formulas for determining optimum color contrast. W3C's specification on color contrast... hp color palette. style sheet text colors. style sheet text colors.