color-gradation-generator

color_gradation_generator.py

class Color:
    def __init__(self, red, green, blue):
        self.red = red
        self.green = green
        self.blue = blue

    def __add__(self, other):
        return Color(
            self.red + other.red,
            self.green + other.green,
            self.blue + other.blue
        )

    def __sub__(self, other):
        return Color(
            self.red - other.red,
            self.green - other.green,
            self.blue - other.blue
        )

    def __truediv__(self, num):
        return Color(
            int(self.red / num),
            int(self.green / num),
            int(self.blue / num)
        )

    def __mul__(self, num):
        return Color(
            self.red * num,
            self.green * num,
            self.blue * num
        )

    def inverted(self):
        return Color(
            255 - self.red,
            255 - self.green,
            255 - self.blue,
        )

    @property
    def hexred(self):
        return hex(self.red)[2:].zfill(2)

    @property
    def hexgreen(self):
        return hex(self.green)[2:].zfill(2)

    @property
    def hexblue(self):
        return hex(self.blue)[2:].zfill(2)

    def __str__(self):
        return f'Color(red={self.hexred}, green={self.hexgreen}, blue={self.hexblue})'

    def colorstring(self):
        if self.is_valid():
            return f'#{self.hexred}{self.hexgreen}{self.hexblue}'
        else:
            return 'NOT VALID AS A COLOR'

    def is_valid(self):
        return (0 <= self.red <= 255) and (0 <= self.green <= 255) and (0 <= self.blue <= 255)


def get_color(c):
    red = int(c[1:3], 16)
    green = int(c[3:5], 16)
    blue = int(c[5:], 16)
    return Color(red, green, blue)


midnight_black = get_color('#000000')
early_morning_skyblue = get_color('#2d92fb')
daylight_yellow = get_color('#ffee00')
evening_orange = get_color('#ff0000')


def show(start_color, start_hour, end_color, end_hour):
    num = end_hour - start_hour
    unit_distance = (end_color - start_color) / num
    for i in range(num):
        color = start_color + unit_distance * i
        print(f'{start_hour + i}h: {color.colorstring()}')
        # print(f'<div><span style="color: white; background-color: {color.colorstring()};">{start_hour + i}h: {color.colorstring()}</span></div>')

show(midnight_black, 0, early_morning_skyblue, 6)
show(early_morning_skyblue, 6, daylight_yellow, 13)
show(daylight_yellow, 13, evening_orange, 19)
show(evening_orange, 19, midnight_black, 24)

Result:

0h: #000000
1h: #071829
2h: #0e3052
3h: #15487b
4h: #1c60a4
5h: #2378cd
6h: #2d92fb
7h: #4b9fd8
8h: #69acb5
9h: #87b992
10h: #a5c66f
11h: #c3d34c
12h: #e1e029
13h: #ffee00
14h: #ffc700
15h: #ffa000
16h: #ff7900
17h: #ff5200
18h: #ff2b00
19h: #ff0000
20h: #cc0000
21h: #990000
22h: #660000
23h: #330000