freecodecamp--freecodecamp/curriculum/challenges/english/blocks/daily-coding-challenges-python/6a22d77ddf034bc4e35b1d59.md

id, title, challengeType, dashedName

id	title	challengeType	dashedName
6a22d77ddf034bc4e35b1d59	Challenge 352: Contrast Rating 1	29	challenge-352

--description--

Given a contrast ratio and a boolean indicating whether the text is large, return the WCAG rating using the following table:

Rating	Normal Text	Large Text
"AAA"	7.0+	4.5+
"AA"	4.5+	3.0+
"Fail"	below 4.5	below 3.0

--hints--

get_contrast_rating("7.5", False) should return "AAA".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(get_contrast_rating("7.5", False), "AAA")`)
}})

get_contrast_rating("4.8", False) should return "AA".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(get_contrast_rating("4.8", False), "AA")`)
}})

get_contrast_rating("4.2", False) should return "Fail".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(get_contrast_rating("4.2", False), "Fail")`)
}})

get_contrast_rating("4.5", True) should return "AAA".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(get_contrast_rating("4.5", True), "AAA")`)
}})

get_contrast_rating("3.0", True) should return "AA".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(get_contrast_rating("3.0", True), "AA")`)
}})

get_contrast_rating("2.7", False) should return "Fail".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(get_contrast_rating("2.7", False), "Fail")`)
}})

--seed--

--seed-contents--

def get_contrast_rating(ratio, is_large_text):

    return ratio

--solutions--

def get_contrast_rating(ratio, is_large_text):
    ratio = float(ratio)
    if is_large_text:
        if ratio >= 4.5:
            return "AAA"
        if ratio >= 3.0:
            return "AA"
    else:
        if ratio >= 7.0:
            return "AAA"
        if ratio >= 4.5:
            return "AA"
    return "Fail"