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import matplotlib.pyplot as plt
import numpy as np

# Create pH values from 0 to 14
pH_values = np.arange(0, 15, 1)

# Corresponding colors (rough approximation for litmus/pH paper colors)
colors = [
    "#ff0000", # 0 - Strong Acid (Red)
    "#ff3300", # 1
    "#ff6600", # 2
    "#ff9900", # 3 - Acidic Orange
    "#ffcc00", # 4
    "#ffff00", # 5 - Acidic Yellow
    "#ccff33", # 6 - Yellow-Green
    "#00ff00", # 7 - Neutral Green
    "#33ccff", # 8 - Light Blue (weak base)
    "#0099ff", # 9
    "#0066ff", # 10
    "#0000ff", # 11 - Blue (base)
    "#6600cc", # 12
    "#8000ff", # 13
    "#9900ff", # 14 - Strong Base (Purple)
]

fig, ax = plt.subplots(figsize=(12, 2))

# Create a horizontal bar with pH colors
for i, (pH, color) in enumerate(zip(pH_values, colors)):
    ax.barh(0, 1, left=i, color=color)

# Labels and ticks
ax.set_xlim(0, 15)
ax.set_xticks(np.arange(0, 15, 1))
ax.set_xticklabels([str(i) for i in range(15)])
ax.set_yticks([])
ax.set_title("pH Scale with Colors (0 = Strong Acid → 14 = Strong Base)", fontsize=14, pad=20)

plt.show()

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