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Python: Convert the values of RGB components to a hexadecimal color code

Python String: Exercise-95 with Solution

Write a Python program to convert the values of RGB components to a hexadecimal color code.

Create a placeholder for a zero-padded hexadecimal value using '{:02X}' and copy it three times.

Use str.format() on the resulting string to replace the placeholders with the given values.

Sample Solution:

Python Code:

def rgb_to_hex(r, g, b):
  return ('{:02X}' * 3).format(r, g, b)
 
print(rgb_to_hex(255, 165, 1))
print(rgb_to_hex(255, 255, 255))
print(rgb_to_hex(0, 0, 0))
print(rgb_to_hex(0, 0, 128))
print(rgb_to_hex(192, 192, 192))

Sample Output:

FFA501
FFFFFF
000000
000080
C0C0C0

Flowchart:

Flowchart: Convert the values of RGB components to a hexadecimal color code.

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Python Code Editor:

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Previous: Write a Python program to convert a hexadecimal color code to a tuple of integers corresponding to its RGB components.
Next: Write a Python program to convert a given string to camelcase.

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m