colour blind
Cannot distinguish shades
Colour blind describes someone unable to distinguish certain colours, most commonly red and green.
The condition is usually inherited and more common in men.
Figuratively, colour blind means treating people equally regardless of race: The law should be colour blind.
Also spelled color blind.
Defective color perception
- protanopiaInability to see red
- deuteranopiaInability to perceive green
- red-greenTwo-hue vision deficiency
- blue-yellowTwo complementary primaries
photopigment · inherited · genetics · Ishihara test · corrective lenses · diagnosis · ophthalmology · optometry
Showing no preference
- unbiasedFree from prejudice
- fairImpartial and unbiased
- neutralNot favoring any side
- objectivePurpose or goal
non-discriminatory · equitable · unprejudiced · meritocratic · equal treatment · without prejudice · egalitarian
Road signal system
- warning signsIndicators of impending danger
- map readingInterpreting geographic diagrams
- user interfaceHuman-computer interaction system
- contrastNotable difference between things
labeling · patterns · symbols · inclusive design · universal design · accommodation · assistive technology · browser extension
Fully developed edible harvest
- traffic signalsLights controlling vehicle movement
- sunsetDay yielding to darkness
- rainbowRefracted light arc
- autumn leavesDeciduous trees' seasonal shedding
daltonism
Defective color perception
- protanopiaInability to see red
- deuteranopiaInability to perceive green
- red-greenTwo-hue vision deficiency
blue-yellow · photopigment · inherited · genetics · Ishihara test · corrective lenses · diagnosis · ophthalmology · optometry · retina
impartial
Showing no preference
objective · non-discriminatory · equitable · unprejudiced · meritocratic · equal treatment · without prejudice · egalitarian
traffic lights
Road signal system
- warning signsIndicators of impending danger
- map readingInterpreting geographic diagrams
- user interfaceHuman-computer interaction system
contrast · labeling · patterns · symbols · inclusive design · universal design · accommodation · assistive technology · browser extension · accessible design
ripe fruit
Fully developed edible harvest
- traffic signalsLights controlling vehicle movement
- sunsetDay yielding to darkness
- rainbowRefracted light arc