Classic Color Meter
By Ricci Adams
Open the Mac App Store to buy and download apps.
Classic Color Meter is a enhanced color meter replacement with added functionality:
• Display modes
• RGB percentage
• RGB decimal
• RGB hexadecimal
• Hue/Saturation/Brightness (HSB)
• Hue/Saturation/Lightness (HSL)
• Y'PbPr and Y'CbCr (both ITU-R BT.601 and ITU-R 709)
• CIE 1931, CIE 1976, CIE LAB, and Tristimulus values
• Lock cursor position / X axis / Y axis
• Adjust magnification (1x/2x/4x/8x)
• Adjust aperture size
• Show/hide cursor coordinates
• Update preview continuously
• Hold Color (allows editing of color in RGB and HSB modes)
• Save/Copy preview image
• Copy Color as Text, Image, or as a NSColor/UIColor/HTML/CSS code snippet
• Paste Text as color
• Adjust aperture color
• Assign actions for clicking/dragging the color swatch
• Use lower-case letters for hex values
• Include pound sign prefix for hex values
• Show visual guides when locking cursor position
• Show component sliders when in Hold Color mode
• Assign global keyboard shortcuts
• Move mouse cursor with arrow keys
Regarding ColorSync issues reported in a review:
All color meter utilities in OS X see the RGB values sent to the display. These RGB values are in the display's color space. You should use "Display as sRGB" (selected by default) to convert the RGB values into the standard color space.
No color meter utility can see the raw RGB values inside of an image file, as they will have undergone at least one color space conversion by the time they reach the display buffer. The only way to accurately sample the original raw values is to open the image in an editor and use that editor's native color picker or eyedropper tool (for example, the Adobe Color Picker in Photoshop).
For more information about color meters and color space conversion, select Help → Learn about Color Conversion from the Classic Color Meter menu bar or visit ricciadams.com/articles/osx-color-conversions
What's New in Version 1.7
Modernization of color management code. By default, Classic Color Meter starts in sRGB mode and displays all colors as sRGB.
Due to changes in modern versions of OS X, it is highly recommended that you operate exclusively in sRGB mode (in both Classic Color Meter and your design software).
For more information, see ricciadams.com/articles/osx-color-conversions
• Fixed an issue where the color aperture would appear oversaturated on 2015 iMac displays.
• Reordered the conversion menu such that "Display in sRGB" is on top.
• Keyboard shortcuts can now use function keys
• Interface bug fixes and tweaks
• Updated linked Color Conversion article with information about modern OS X versions and the new iMac displays.