For most folks, the Color Log provides more information than they would ever
want. It tracks information on each selected color, whether clicked
directly, chosen from the list of color names, or jumped upon by Spot the Magic
Color Dog. If you just want the hex value of a color, you can copy and
paste that from the Hex Color field of the main window.
The following information is for more advanced users who might be doing some
sort of color analysis or statistical work. The Color Log basically
consists of two tables. The top one tracks individual information on each
selected color. It stores up to 2,500 lines, at which point it forgets the
first 500. I.e., you can always access at least the last 2,000 selections.
The bottom table concerns itself with statistical information. The
Interactive Color Wheel uses a 16-bit color space, which means that the
24-bit colors from the color name list (or whose hex value is typed in) are
usually quantized, meaning that color accuracy is lost. I wanted to know
how extensive that loss was, hence the statistics. Each time you select a
new Color List from the main window, the statistical information is
In either table, one or more rows can be copied to the clipboard. Select
the row(s), then click Ctrl+C (or whatever the copy key happens to be on your
particular system). When you paste the information into another program, it
appears in Tab Separated Value format for each line, with a line feed sequence
after each line. The final, Mismatch column of the top table is
editable, meaning you can make annotations prior to saving the information.
Just click in the final column of the row you wish to annotate, and type.
Click elsewhere or hit the Return key to complete editing. Column widths
may be changed by dragging the dividers between column headings.
Table of Colors
- Name - the closest named color to the one selected. The first
character shows whether it is an exact match (=), a quantized close match
(@), or a non-match (~).
- Distance - the color distance between the selected color and the
- Hex - the hexadecimal value of the color.
- Lumi - a greyscale representation of the luminance of the color.
- RGB - the (red, green, blue) values for the color.
- Complement - the complement (opposite) of the color.
- HSB - the (hue, saturation, brightness) of the color.
- QE - Quantization Error between a color selected from the left pane
(list or hex entry) and the color displayed.
- Mismatch - signifies an imperfection in the color name look-up
process. Occasionally a selected color name is not the one found
when the program attempts to identify it on the wheel. When this
occurs, it is reported.
Table of Accumulated Quantization Error
-- Rich Franzen, 2011-01-05
- Hex QE - average QE between either a selected color name or a
typed-in hex value and the displayed color.
- Name QE - average QE between an exact color request (by clicking
in the square box to right of large color name) and the displayed color.
- Mismatch QE - average QE between the color name you clicked and
the color name the program found.
- Search Accuracy - average color distance between any selected
color and its named color.
- Count - for Search Accuracy, displays the count of selected
colors. For the other three rows, displays the actual error count
as numerator and the possible (maximum) error count as denominator.
- Red QE - average percent QE of red component
- Green QE - average percent QE of green component
- Blue QE - average percent QE of blue component
- Average QE - average of Red, Green, and Blue QEs.
- Distance - (only applicable to Search Accuracy). Shows
the (non-zero minimum, average, maximum) distances of all color
look-ups. Color distance is calculated by summing the distances in
two color spaces, CIE L*a*b* and HSB.