Colorimeter: Color Meter

Measure live camera and photo colors with white reference calibration, Delta E comparison, offline RAL and Munsell matching, and local PDF, PNG, CSV export.

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.