102:
69:
31:
229:
For instance, the colors assigned to lines on a transport map are arbitrary. As well as a color, they are often assigned a letter or number. Instead of repeating the ColorADD symbols, it would be preferable to repeat the letter or number throughout the map or to choose a colorblind-friendly palette.
209:
One of the main criticisms of the ColorADD system is that, similar to how the six (6) and nine (9) are mirror images of each other, some of the color symbols can be confused if they are inverted. For example, the symbols for red and blue both use the same triangle oriented in a different direction.
93:. Colors derived from other colors have the symbols of the combined colors, creating derivative colors (orange, green, purple and brown) and dark or white tones. Metalized colors like silver or gold are shown with a left parenthesis on the symbols.
217:). This still adds noise to the design and can slow down the identification of some ColorADD symbols. While Arabic numerals came into existence centuries ago, the much more recent ColorADD system could have been designed with this in mind.
225:
In many cases, colors are used as a code for something else. In these cases, the choice of color is often arbitrary. The use of color symbols can add an unnecessary layer of indirection and other more direct symbols are better choices.
269:
76:
The code is based on five base signs: two triangles (one angled upwards and the other angled downwards), one diagonal line, one solid square box and one empty square box representing black, white and the
213:
In some uses, this problem has been addressed by adding a baseline to indicate where the bottom of the symbol is. This is similar to what is done with the six and nine Arabic numerals (see
394:
295:
European
Disability Forum. Mobile for Good Europe Awards: Application which enables colour-blind users to understand colours & information based on colours winds 30,000E award
579:
186:
and fees are not public. According to ColorADD "license fee is adjusted to the partner's profile". There is a pro bono model only for schools and universities managed by the
464:
273:
589:
297:
60:
representing colors and color combinations. The app won the accessibility category of the 2013 Vodafone
Foundation Mobile For Good Europe Awards.
518:
529:
398:
247:
230:
Another example is the color coding of bins. In this instance, symbols representing what can be put in each bin would be more useful.
538:
534:
334:
426:
270:"Dyslexia and Breast Cancer Apps Amongst Winners at €200,000 Vodafone Foundation Mobile For Good Europe Awards, 06 December 2013"
584:
470:
214:
574:
524:
210:
Given the composability built into the system, the symbols for green and orange are also mirror images of each other.
543:
376:
353:
314:
131:
544:
Zero project, Innovative
Practices 2014 on Accessibility: Colour identification system for the colourblind
294:
187:
177:
53:
412:
57:
49:
331:
338:
301:
180:
149:
42:
525:
Portuguese designer becomes "hero" for the colourblind. 21 Mar 2012, Agence France-Presse
466:
ColorADD, Color
Identification System: Co-Creating a more Colorful World for Colorblinds
109:
Since its creation, ColorADD has been applied in various services, mainly in
Portugal:
101:
568:
165:
78:
539:
Reinventing the Color Wheel. icograda
International Council of Communication Design
169:
68:
519:
A Practical Guide to
Designing with Data by Brian Suda. 2010. Five Simple Steps.
497:
30:
491:
161:
535:
icograda: International
Council of Graphic Design Associations description
380:
126:
Accessibility: paint cans, groceries, postage services, energy monitoring
46:
357:
17:
501:
173:
82:
318:
145:
138:
117:
90:
413:"Cloogy is the first technological equipment to integrate ColorADD"
105:
Application of coloradd code in traffic lights with color blindness
100:
67:
29:
135:
86:
427:"After 46 Years, Mattel Redesigned Uno For Color-Blind People"
190:
113:
Hospitals: on patient wristbands, pill bottles and path lines
557:
443:
123:
Transports: subway maps, traffic lights and parking lots
184:
Miguel Neiva & Associados - design gráfico, Lda.
500:from the original on 6 September 2024 – via
248:"ColorAdd®, o código de cores para daltónicos"
8:
371:
369:
367:
348:
346:
438:
436:
580:Augmentative and alternative communication
148:launched a colorblind-friendly version of
120:coloring pencils and students' note books
34:Example ColorADD symbols for seven colors
239:
27:System of graphical symbols for colors
72:The code signs and color combinations
7:
469:, changemakers.com, archived from
45:to recognise colors, developed by
25:
590:Visual disturbances and blindness
490:Eggertson, Curran (24 May 2024).
530:Making More Health, Miguel Neiva
56:, Miguel Neiva. It consists of
215:Regional handwriting variation
1:
156:Fees and usage restrictions
606:
130:It was also recognised by
41:is a sign code for aiding
315:"Health & hospitals"
152:that utilizes ColorADD.
493:Deconstructing ColorADD
332:Viarco official website
132:Buenos Aires University
205:Orientation dependency
106:
73:
35:
585:Portuguese inventions
383:on 22 September 2021.
360:on 22 September 2021.
321:on 22 September 2021.
104:
97:Uses and recognitions
71:
52:and professor at the
33:
575:Assistive technology
429:. September 6, 2017.
415:. February 27, 2013.
221:Colors used as codes
401:on 25 October 2013.
164:; it is not in the
144:In September 2017,
54:University of Minho
337:2013-03-12 at the
300:2014-05-28 at the
107:
74:
43:color blind people
36:
16:(Redirected from
597:
561:
560:
558:Official website
506:
505:
487:
481:
480:
479:
478:
460:
454:
453:
451:
450:
440:
431:
430:
423:
417:
416:
409:
403:
402:
397:. Archived from
391:
385:
384:
379:. Archived from
373:
362:
361:
356:. Archived from
350:
341:
329:
323:
322:
317:. Archived from
311:
305:
292:
286:
285:
283:
281:
272:. Archived from
266:
260:
259:
257:
255:
244:
172:. Usage must be
58:geometric shapes
50:graphic designer
21:
605:
604:
600:
599:
598:
596:
595:
594:
565:
564:
556:
555:
552:
515:
513:Further reading
510:
509:
489:
488:
484:
476:
474:
463:Neiva, Miguel,
462:
461:
457:
448:
446:
442:
441:
434:
425:
424:
420:
411:
410:
406:
393:
392:
388:
375:
374:
365:
352:
351:
344:
339:Wayback Machine
330:
326:
313:
312:
308:
302:Wayback Machine
293:
289:
279:
277:
268:
267:
263:
253:
251:
250:(in Portuguese)
246:
245:
241:
236:
223:
207:
202:
194:ColorADD.Social
181:private company
160:This system is
158:
99:
66:
28:
23:
22:
15:
12:
11:
5:
603:
601:
593:
592:
587:
582:
577:
567:
566:
563:
562:
551:
550:External links
548:
547:
546:
541:
532:
527:
522:
514:
511:
508:
507:
482:
455:
432:
418:
404:
395:"Oporto metro"
386:
363:
342:
324:
306:
287:
276:on 28 May 2014
261:
238:
237:
235:
232:
222:
219:
206:
203:
201:
198:
157:
154:
128:
127:
124:
121:
114:
98:
95:
79:primary colors
65:
62:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
602:
591:
588:
586:
583:
581:
578:
576:
573:
572:
570:
559:
554:
553:
549:
545:
542:
540:
536:
533:
531:
528:
526:
523:
521:, pages 61–62
520:
517:
516:
512:
503:
499:
495:
494:
486:
483:
473:on 2021-04-21
472:
468:
467:
459:
456:
445:
439:
437:
433:
428:
422:
419:
414:
408:
405:
400:
396:
390:
387:
382:
378:
372:
370:
368:
364:
359:
355:
349:
347:
343:
340:
336:
333:
328:
325:
320:
316:
310:
307:
303:
299:
296:
291:
288:
275:
271:
265:
262:
249:
243:
240:
233:
231:
227:
220:
218:
216:
211:
204:
199:
197:
195:
192:
189:
185:
182:
179:
175:
171:
170:free licensed
167:
166:public domain
163:
155:
153:
151:
147:
142:
140:
137:
133:
125:
122:
119:
115:
112:
111:
110:
103:
96:
94:
92:
88:
84:
83:red (magenta)
80:
70:
63:
61:
59:
55:
51:
48:
44:
40:
32:
19:
492:
485:
475:, retrieved
471:the original
465:
458:
447:. Retrieved
421:
407:
399:the original
389:
381:the original
358:the original
327:
319:the original
309:
290:
278:. Retrieved
274:the original
264:
254:14 September
252:. Retrieved
242:
228:
224:
212:
208:
193:
183:
168:, nor is it
159:
143:
129:
108:
75:
38:
37:
444:"ColourADD"
377:"Transport"
354:"Education"
162:copyrighted
87:blue (cyan)
569:Categories
477:2022-05-11
449:2022-05-11
234:References
178:for-profit
47:Portuguese
200:Criticism
188:nonprofit
116:Schools:
498:Archived
335:Archived
298:Archived
174:licensed
39:ColorADD
18:Coloradd
502:YouTube
176:by the
280:27 May
146:Mattel
139:Oporto
118:Viarco
91:yellow
89:, and
537:and
282:2014
256:2013
136:TEDx
134:and
64:Code
191:NGO
150:Uno
571::
496:.
435:^
366:^
345:^
196:.
141:.
85:,
81::
504:.
452:.
304:.
284:.
258:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
