Colorblind
Accessibility
Manifesto

Start with “Why?”

Before designing a website, or even making a small change to an existing one, ask if your design choices consider the needs of people with color blindness. Changing the button color on your website may seem insignificant, but it could make that website inaccessible to nearly 8% of men and 0.4% of women who have color blindness.


Don’t communicate only with colors

Can color really be enough to communicate your message? Color can be one element of a much larger picture, but don’t rely on color to serve as the only element of distinction.


Design with shapes

Color-blind people can discern the difference between shapes far more easily than between colors. When you design with shapes, you won’t cause unnecessary additional effort for the people who visit your website.


Choose the right copy

Absolutely avoid identifying tasks or requests to the user only through color. Include other distinguishing characteristics like shape or size.


Test your designs in black and white

Switching the UI to black and white helps you evaluate the composition and the usability of your designs. Without the meaning provided by color, is your UI still working? Can you understand the meaning of every button?


Rethink button states

Color alone does not convey information for everyone. Use shapes and icons that indicate a button’s function.


Use contrast

Don’t default to using green and red to communicate things like product availability or pass/fail. Using icons, text, and high contrast colors such as blue and red will help many (but not all) people with color blindess.


The smaller the item, the bigger the problems

Relying on small, colored elements to signal important information, like updates or status, creates a huge barrier for color-blind people.


Less fancy, more usable

Dear data visualization designer, stop using hundreds of shades to present your data infographics. About 350 million users cannot benefit from it.


More than you think

Although it may seem that color blind people are few, there are actually 350 million. 350 million people you’re closing the door on when you don’t make your site accessible.


Colorblind Accessibility Manifesto

is co-signed by 156 designers
Federico Monaco
Emanuele Coppola
Emanuela Damiani
Alessandro Saglietti
Luca Giraudo
Luca Morano
Marco Amato
Elena Marella
Andrea Pinchi
Stefano Vitti
Antonella Romano
Paulo Ferreira
Francesco Lauriola
Davide Albanese
Matteo Sussio
Matteo Gratton
Michelle Heubush
Samuele Rovituso
Rogier Barendregt
Manuel Pileri
Riccardo Galla
Larry Swanson
Mattia Ducci
Alessandro Moro
Luca Sartore
Armando Cardillo
Matteo Negri
Elisa Fuliano
Enrico Mosca
Antonio Grillo
Federico Gallo
Huw Sambrook
Jabri Whirl
Diego Collo
Luca Spalierno
Saurabh Bedarkar
Nikki Kuhn
Amy Shackles
Ariana Smith
Katherine Moonan
Sanne Peters
Silvio Cioni
Sourav Sarkar
Tay Ashton
Victoria Godfrey
Raffaele Vitale
Gabriele Avanzino
Midori
Andrea Caporale
Yashasri Sadagopan
Debora Bottà
Lucy Pillicino
Stefano Bellucci Sessa
Sofia Woods
Giorgio Calandri
Tarun Karn
Nicola Biagioni
ChiaraCielo Longobardi
Felipe Genuino
Emanuella Vanossi
Elisa Ragazzini
Davide Pisauri
Cecilia Giglio
María Josefina Geisse
Eugenio Peluso
Michele Zamparo
Sunny Manduva
Mirko Santangelo
Flavio Santana
Giovanni Caruso
Nicolò Volpato
Camilla Zampolini
Alina Jafri
Nicolas Torresan
April Chilldres
Vinu Casper
Allegra Caputo
Federico Girotto
Stefano Fois
Jelle Akkerman
Fabrizio Ponzelletti
Francesca Bruschi
Simone Tallarita
Paolo Tonon
Andrea Paci
Virginia Beraldi
Maria Francesca Di Alessandro
Primeshika Fernando
Davide Martignetti
Carlos Jeurissen
Chiara Pacchiarotti
Margherita Provera
Wayne Shih
Giacomo Vergnano
Paolo Spazzini
Mattia Brigliadori
Chris Maslin
David Naunton
Chris Pommer
Patrick George Wyndham Smith
Johanna Hörrmann
Jacob Desaulniers
Eric Eggert
Teresa Pato
Ashok VA
Michael Edelstone
Matteo Gavagnin
Christopher Patnoe
Alicia Jarvis
Sebbe Isaac Kurian
Sarah (Chuck) Allison
Jay Lockwood
Kate Morris
Clive A Ramsden
Nicola Mascotto
Sandyara Peres
Tim J. Poklekowski
Paolo Negri
Lorant Marosi
Andrea Vollf
Martin Lang
Philip Sierzega
José Oliveira
Svetlana Kouznetsova
Cam Beaudoin
Anna Effort
Boris Di Chio
Valerio De Cecio
Andrea Zucchiatti
Claudio Luis Vera
Veronica Leandri
John Oxton-King
Diego Garcia de Oliveira
Renata Torres Alves
Shashank Kumar
Sergei Kriger
Stanton Valentino
Daria Andrea
Alex Ying Chen
Pat Dryburgh
Giulia Cavazzani
Kazuhito Kidachi
Mirko Cappai
Tiziano Tassi
Filippo Elgorni
Todd Chambers
Makoto Ueki
Shivani Shah
Valeria Piccioni
Stéphanie Walter
Michael Spellacy
Ragwa Elsayed
Carlo Frinolli
Terence Fairley
Luca Minici
Teresa Ballotti