Interpolate a color palette
Generate a fixed sequence between two endpoints in one declared color space.
0 to 0.33
0
0.17
0.33
0.50 to 0.83
0.50
0.67
0.83
Endpoint
1
7 colors
6 equal intervals
space: OklabControl both endpoints and the number of colors
The result includes the violet and orange endpoints plus five equally positioned Oklab mixes between them.
Generate the complete sequence once
ColorPalette::interpolate() places each color at i divided by steps minus one and returns an unnamed ordered palette.
<?php
use PhpColor\Color\Color;
use PhpColor\Color\Palette\ColorPalette;
$palette = ColorPalette::interpolate(
Color::parse('#7c3aed'),
Color::parse('#f59e0b'),
steps: 7,
space: 'oklab',
);
echo implode(', ', $palette->toHex());
// #7c3aed, #8b59d7, #9d6dbf, #b17da6, #c78a88, #dd9561, #f59e0bInterpolation space changes the path
The endpoints and positions can stay identical while another supported interpolation space produces different intermediate colors.
MinimumThe method requires at least two steps.
EndpointsThe first and last palette entries are the supplied colors.
PositionsIntermediate positions are evenly distributed.
GamutVerify the representation used for the target display or storage format.