How to change the color of the axis ticks and labels for a plot in matplotlib

Question

I d like to Change the color of the axis  as well as ticks and value-labels for a plot I did using matplotlib and PyQt  Any ideas

User · Answer

For those using pandas DataFrame plot    matplotlib axes Axes is returned when creating a plot from a dataframe  As such  the dataframe plot can be assigned to a variable  ax  which enables the usage of the associated formatting methods  The default plotting backend for pandas  is matplotlib   import pandas as pd    test dataframe data     a   range 20    date   pd bdate range  2021-01-09   freq  D   periods 20   df   pd DataFrame data     plot the dataframe and assign the returned axes ax   df plot x  date   color  green   ylabel  values   xlabel  date   figsize  8  6      set various colors ax spines  bottom   set color  blue   ax spines  top   set color  red    ax spines  right   set color  magenta   ax spines  left   set color  orange   ax xaxis label set color  purple   ax yaxis label set color  silver   ax tick params colors  red   which  both       both  refers to minor and major axes

User · Answer

If you have several figures or subplots that you want to modify  it can be helpful to use the matplotlib context manager to change the color  instead of changing each one individually  The context manager allows you to temporarily change the rc parameters only for the immediately following indented code  but does not affect the global rc parameters   This snippet yields two figures  the first one with modified colors for the axis  ticks and ticklabels  and the second one with the default rc parameters   import matplotlib pyplot as plt with plt rc context   axes edgecolor   orange    xtick color   red    ytick color   green    figure facecolor   white           Temporary rc parameters in effect     fig   ax1  ax2    plt subplots 1 2      ax1 plot range 10       ax2 plot range 10     Back to default rc parameters fig  ax   plt subplots   ax plot range 10         You can type plt rcParams to view all available rc parameters  and use list comprehension to search for keywords     Search for all parameters containing the word  color    param  value  for param  value in plt rcParams items   if  color  in param

User · Answer

motivated by previous contributors  this is an example of three axes   import matplotlib pyplot as plt  x values1  1 2 3 4 5  y values1  1 2 2 4 1   x values2  -1000 -800 -600 -400 -200  y values2  10 20 39 40 50   x values3  150 200 250 300 350  y values3  -10 -20 -30 -40 -50    fig plt figure   ax fig add subplot 111  label  1   ax2 fig add subplot 111  label  2   frame on False  ax3 fig add subplot 111  label  3   frame on False   ax plot x values1  y values1  color  C0   ax set xlabel  x label 1   color  C0   ax set ylabel  y label 1   color  C0   ax tick params axis  x   colors  C0   ax tick params axis  y   colors  C0    ax2 scatter x values2  y values2  color  C1   ax2 set xlabel  x label 2   color  C1    ax2 xaxis set label position  bottom     set the position of the second x-axis to bottom ax2 spines  bottom   set position   outward   36   ax2 tick params axis  x   colors  C1   ax2 set ylabel  y label 2   color  C1          ax2 yaxis tick right   ax2 yaxis set label position  right    ax2 tick params axis  y   colors  C1    ax3 plot x values3  y values3  color  C2   ax3 set xlabel  x label 3   color  C2   ax3 xaxis set label position  bottom   ax3 spines  bottom   set position   outward   72   ax3 tick params axis  x   colors  C2   ax3 set ylabel  y label 3   color  C2   ax3 yaxis tick right   ax3 yaxis set label position  right    ax3 spines  right   set position   outward   36   ax3 tick params axis  y   colors  C2     plt show

User · Answer

As a quick example  using a slightly cleaner method than the potentially duplicate question   import matplotlib pyplot as plt  fig   plt figure   ax   fig add subplot 111   ax plot range 10   ax set xlabel  X-axis   ax set ylabel  Y-axis    ax spines  bottom   set color  red   ax spines  top   set color  red   ax xaxis label set color  red   ax tick params axis  x   colors  red    plt show     Alternatively  t set color  red   for t in ax xaxis get ticklines     t set color  red   for t in ax xaxis get ticklabels

[python] How to change the color of the axis, ticks and labels for a plot in matplotlib

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