Color blindness affects about 1 in 12 men and 1 in 200 women. For most desk jobs, it's irrelevant. But for certain safety-critical professions — aviation, military, law enforcement, firefighting, and electrical work — color vision is tested during the hiring process, and failure can limit or block specific roles.
Quick Reference: Color Vision by Profession
| Profession | Test Required? | Common Tests | Waiver Possible? |
|---|---|---|---|
| Commercial Pilot | Yes — strict | WCCVT, RCCT, CAD | SODA (limited) |
| Military (all branches) | Yes — at MEPS | Ishihara (PIP plates) | No, but some MOS open |
| Police Officer | Varies by dept | Ishihara, Farnsworth D-15 | Some depts allow mild CVD |
| Firefighter | Yes — NFPA std | Ishihara, Farnsworth D-15 | Rarely |
| Electrician | Varies by program | Ishihara | Accommodations possible |
| CDL / Truck Driver | Yes — DOT | Ishihara or equivalent | Must distinguish red/green/amber |
Aviation: Pilots and Air Traffic Controllers
Aviation has the most stringent color vision requirements of any profession. Pilots need to identify runway lights, instrument panel colors, and navigation signals reliably. In the U.S., the FAA updated its color vision testing requirements effective January 1, 2025.
FAA Approved Tests (2025+)
The FAA has moved away from paper Ishihara plates and now requires computer-based tests:
- Waggoner Computerized Color Vision Test (WCCVT)
- Rabin Cone Contrast Test (RCCT)
- City Occupational Colour Assessment and Diagnosis (CAD/AVOT-PRO-US)
Testing must be in person. Virtual or printed versions are not accepted. Once passed, you generally don't retest unless a new condition develops.
What if you fail?
You may receive a medical certificate with a limitation — typically "Valid for day VFR only" (no night flying, no instrument-only flight). You can pursue a SODA (Statement of Demonstrated Ability) through an operational test to remove restrictions. The FAA prohibits color correction lenses (X-chrom, ColorMax) for passing these tests.
Military (Army, Navy, Air Force, Marines)
Color blindness does not automatically disqualify you from military service. All applicants are tested at MEPS (Military Entrance Processing Station) using pseudoisochromatic plates (typically Ishihara). But the result determines which jobs you can hold, not whether you can enlist.
Jobs Usually Open
- • Administration / Human Resources
- • Logistics and Supply
- • Culinary / Food Service
- • Finance / Legal
- • Public Affairs
Jobs Usually Restricted
- • Pilot / Navigator
- • Special Operations
- • Electronics / Avionics
- • Medical / Lab Technician
- • Intelligence / Imagery Analyst
The Army is generally considered the most lenient — if you fail the initial PIP plates, they may administer a secondary "vivid red/green" screening. Passing this opens more MOS options. The Air Force tends to be stricter, particularly for aviation and technical roles.
Law Enforcement (Police, State Troopers)
Requirements vary widely by department. Police officers need color vision to accurately describe suspects (clothing color), identify vehicle colors during pursuits, and read traffic signals. Most departments that test use the Ishihara Color Test, and some follow up with the Farnsworth D-15 for borderline cases.
Firefighters
Firefighting requires identifying color-coded equipment quickly under stress — fire extinguisher types (red, yellow, blue), gas cylinder markings, and HAZMAT labels. Most fire departments follow NFPA standards and test using Ishihara plates during the medical exam. Candidates who fail may take a secondary Farnsworth D-15 test.
Failing both tests can disqualify you from field duty, though some departments allow non-HAZMAT roles. This varies by agency — always check with the specific department.
Electricians
There's no universal ban on color blind electricians, but the trade relies heavily on identifying color-coded wiring. Some apprenticeship programs and certification bodies require passing a color vision test during enrollment. In practice, many color blind electricians manage by:
- Using multimeters and continuity testers to verify wire identity
- Relying on wire labeling and numbered markings
- Working with a partner for color-critical wiring tasks
- Specializing in roles that don't require color identification (e.g., project management, inspection)
Common Color Vision Tests Used by Employers
Ishihara Test
The most widely used screening test. 14-38 plates with colored dot patterns. You identify numbers hidden in the dots. Detects red-green deficiency but not blue-yellow.
Try our free Ishihara screening →Farnsworth D-15
An arrangement test where you sort 15 colored caps in order. More nuanced than Ishihara — used as a secondary test when the initial screen is borderline.
Farnsworth-Munsell 100 Hue
A detailed arrangement of 85 colored caps. Takes 15+ minutes. Used in research and specialized occupational settings that require precise color discrimination.
WCCVT / RCCT / CAD
Computer-based tests now required by the FAA for pilots (since Jan 2025). More precise than paper-based alternatives. Not yet widely used outside aviation.
Common Questions
Can I use color blind glasses to pass a job color vision test?
Generally no. The FAA explicitly prohibits color correction aids (X-chrom lenses, ColorMax glasses). Most military and law enforcement agencies also disallow them. These glasses shift color perception but don't fix the underlying deficiency — and test administrators know to check.
Should I disclose my color blindness to an employer?
If the job requires a medical exam that includes color vision testing, you can't avoid it. For jobs without formal testing, disclosure is a personal decision. Under the ADA, employers can't discriminate based on disability unless color vision is a bona fide occupational requirement.
Can I practice for a color vision test?
You can familiarize yourself with test formats, but you can't "study" your way to normal color vision. However, taking a screening test at home can help you understand your deficiency type and severity before a high-stakes exam. Our free Ishihara test is a good starting point.
What jobs can I do with color blindness?
The vast majority of careers have no color vision requirements. Software development, writing, law, finance, teaching, management, marketing, and most office-based jobs don't test for it. Even within restricted fields, non-operational roles (admin, logistics, training) are often open.
Know Your Color Vision Before the Test
Take our free Ishihara screening to understand your color vision type and severity before a high-stakes exam. No registration required.