# Light

Canonical URL: https://colorcurio.us/colormaps/tol.light
Source type: Colormap
Type: categorical
Collection: tol
Attribution: Paul Tol, "Colour Schemes" (SRON/EPS/TN/09-002)
License: BSD-3-Clause
Source: https://sronpersonalpages.nl/~pault/
Tags: categorical, light
Stops: 9

## Summary

Light is a categorical colormap from the tol collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

9-class light qualitative palette.

## Perceptual profile (OKLCh)

- Lightness: 0.722 → 0.897 (range 0.183, min 0.714, max 0.897); non-monotonic; midpoint 0.864
- Chroma: min 0.000, max 0.168, mean 0.107
- Hue: 249.2° → 0.0° (span 360.0°), path monotonic-ccw; quadrants: blue, orange, chartreuse, red, azure, mint
- Endpoint temperature: cool → null
- Perceptual ΔE: total 255.5, mean/step 31.934, max step 44.080, smoothness 0.675, speed 1.000

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 188.4; preserves order: no
- Deuteranopia: ΔE total 187.1; preserves order: no
- Tritanopia: ΔE total 228.7; preserves order: no

## Related

- Family: https://colorcurio.us/colormaps/families/tol
- All colormaps: https://colorcurio.us/colormaps