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Closes #1179: Adjust topology map text color based on node background

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Jeremy Stretch
2017-05-15 12:56:16 -04:00
parent ca1725b98c
commit 3be6e5b015
2 changed files with 17 additions and 2 deletions
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12
netbox/utilities/utils.py
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@ -24,3 +24,15 @@ def csv_format(data):
csv.append(u'{}'.format(value))
return u','.join(csv)
def foreground_color(bg_color):
"""
Return the ideal foreground color (black or white) for a given background color in hexadecimal RGB format.
"""
bg_color = bg_color.strip('#')
r, g, b = [int(bg_color[c:c+2], 16) for c in (0, 2, 4)]
if r * 0.299 + g * 0.587 + b * 0.114 > 186:
return '000000'
else:
return 'ffffff'