HP-23er-23es-Monitor-Calibration

Calibrated HP 23er 23es Monitor Settings

Sharpness

By default, the sharpess is set too high. Set Sharpness to Level 2 or 3.

Main Menu > Image Control > Sharpness > Level 3

Main Menu > Brightness... > 33 (or desired brightness).

Main Menu > Contrast... > 65.

By default, the monitor appears too yellow / green.

Main Menu > Color Control... > Custom RGB... 
R: 241
G: 226
B: 226

By default, the gamma is set too high. There is no OSD controls to fix this. Hence, use the tweaked gamma and colour icc file.

Copy and Paste the .icc file to /Users/YOUR_USERNAME/Library/ColorSync/Profiles .
Go to  > System Preferences > Displays > Color > HP 23es Calibrated.icc.

Open Start. Search for Color Management and click the result.
On the Devices tab, select the display for which you want to change the color profile from the drop-down menu.
Check the Use my settings for this device option.
Click the Add button.
On the Associate Color Profile page, click the Browse button and locate the color profile downloaded earlier.
Double-click the .icc file to install the new profile.

Optional setting as it may / may not improve the smoothness of video playback.

Main Menu > Image Control > Video OverDrive > Off