Colorimeter: Color Meter

Colorimeter turns your iPhone or iPad into a serious color measurement tool for real-world work.

Measure color from the live camera or local photos, calibrate with a white reference, compare readings with Delta E, and keep every result on your device.

MEASURE, IDENTIFY, AND COMPARE COLOR
- Sample color live with the camera
- Pick exact colors from photos and imported images
- Use white reference calibration for more reliable readings in changing light
- Compare two measurements with Delta E 2000, 94, and 76

SEE THE COLOR DATA YOU ACTUALLY NEED
- View HEX, RGB, HSL, HSI, HSB, HSP
- View CIELAB, OKLab, OKLCH, XYZ, xyY, YUV, CMYK, and RYB
- Measure LRV (Light Reflectance Value)
- Reorder and hide color spaces to fit your workflow

MATCH STANDARDS AND NAME COLORS OFFLINE
- Match against the bundled HTML color catalog
- Import licensed RAL and Munsell catalogs for offline matching
- See descriptive color names in 40 languages
- Keep standards matching local to your device

SAVE AND EXPORT YOUR RESULTS
- Save measurements with notes in your library
- Revisit earlier readings anytime
- Export as PDF, PNG, or CSV
- Share clean measurement data without a cloud workflow

BUILT FOR SERIOUS COLOR WORK
Colorimeter is ideal for designers, decorators, architects, print technicians, researchers, students, makers, and anyone who needs a reliable mobile color tool without extra hardware.

PRIVACY-FIRST AND LOCAL-ONLY
- No account required
- No cloud dependency
- No remote color processing
- Your measurements, catalogs, and exports stay on your device

Whether you're checking paint, print, materials, products, samples, or inspiration from a photo, Colorimeter helps you measure, identify, compare, and save color anywhere.