HaptiColor: Interpolating Color Information as Haptic Feedback to Assist the Colorblind
Paper i proceeding, 2015

Most existing colorblind aids help their users to distinguish and recognize colors but not compare them. We present HaptiColor, an assistive wristband that encodes discrete color information into spatiotemporal vibrations to support colorblind users to recognize and compare colors. We ran three experiments: the first found the optimal number and placement of motors around the wrist-worn prototype, and the second tested the optimal way to represent discrete points between the vibration motors. Results suggested that using three vibration motors and pulses of varying duration to encode proximity information in spatiotemporal patterns is the optimal solution. Finally, we evaluated the HaptiColor prototype and encodings with six colorblind participants. Our results show that the participants were able to easily understand the encodings and perform color comparison tasks accurately (94.4% to 100%).


wearable computing

Color blindness


spatiotemporal vibrotactile pattern


Marta Gonzalez Carcedo

Chalmers, Tillämpad mekanik, Fordonssäkerhet

S. H. Chua

National University of Singapore

S. Perrault

National University of Singapore

Yale NUS College

Pawel Wozniak

Chalmers, Tillämpad informationsteknologi, Interaktionsdesign (Chalmers)

R. Joshi

National University of Singapore

Mohammad Obaid

Chalmers, Tillämpad informationsteknologi, Interaktionsdesign (Chalmers)

Morten Fjeld

Chalmers, Tillämpad informationsteknologi, Interaktionsdesign (Chalmers)

S. D. Zhao

National University of Singapore

34th Annual Chi Conference on Human Factors in Computing Systems, Chi 2016