Hex Export Format

The Hex exporter creates simple plaintext files with hex color values, one per line.

Format Details

Property	Value
Identifier	hex
Extension	.txt
Use case	General purpose, configuration files

Output Format

#440154
#482878
#3e4989
#31688e
#26828e
#1f9e89
#35b779
#6ece58
#b5de2b
#fde725

Each line contains a 6-character hex color with # prefix.

CLI Usage

# Basic export
palettize create viridis --format hex --output colors.txt

# Specific number of colors
palettize create viridis -f hex -o colors.txt --steps 10

# Print to stdout
palettize create viridis -f hex --steps 5

Python Usage

from palettize import create_colormap, get_scaler_by_name, get_exporter

cmap = create_colormap(preset="viridis")
scaler = get_scaler_by_name("linear", domain_min=0, domain_max=1)
exporter = get_exporter("hex")

output = exporter.export(
    colormap=cmap,
    scaler=scaler,
    domain_min=0,
    domain_max=1,
    options={"num_colors": 10}
)

# Split into list
colors = output.strip().split('\n')
print(colors)  # ['#440154', '#482878', ...]

Options

Option	Type	Default	Description
num_colors	int	256	Number of colors to generate

Use Cases

Configuration Files

Many applications accept color lists in configuration:

config.yaml

colors:
  - "#440154"
  - "#482878"
  - "#3e4989"

CSS Custom Properties

:root {
  --color-1: #440154;
  --color-2: #482878;
  --color-3: #3e4989;
}

Color Picker Integration

Import colors into design tools:

1. Export: palettize create viridis -f hex --steps 10
2. Copy output
3. Paste into Figma, Sketch, or other design tools

Shell Scripts

# Generate colors and use in script
colors=$(palettize create viridis -f hex --steps 5)

# Process each color
echo "$colors" | while read color; do
    echo "Processing $color"
done

Python Lists

# Quick way to get a color list
output = exporter.export(cmap, scaler, 0, 1, {"num_colors": 5})
colors = output.strip().split('\n')

# Use with matplotlib
import matplotlib.pyplot as plt
from matplotlib.colors import LinearSegmentedColormap

cmap = LinearSegmentedColormap.from_list("custom", colors)

Comparing to RGBA Format

Feature	Hex	RGBA
Alpha support	No	Yes
Format	#RRGGBB	rgba(R, G, B, A)
CSS compatible	Yes	Yes
File size	Smaller	Larger

Use Hex when you don’t need alpha transparency. Use RGBA when you need alpha values.