Medium Contrast

Summary

Medium Contrast is a 8-color categorical colormap from tol. Its colors span lightness 0.00–1.00 and chroma 0.00–0.13.

8-class medium-contrast qualitative palette.

Perceptual profile (OKLCh)

• Lightness: 0.668 → 0.000 (range 1.000, min 0.000, max 1.000); non-monotonic; midpoint 0.586
• Chroma: min 0.000, max 0.129, mean 0.086
• Hue: 249.4° → 0.0° (span 254.9°), path folded; quadrants: blue, chartreuse, yellow, red
• Endpoint temperature: cool → null
• Perceptual ΔE: total 352.5, mean/step 50.354, max step 100.000, smoothness 0.501, speed 1.000

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 340.6; preserves order: no
• Deuteranopia: ΔE total 329.3; preserves order: no
• Tritanopia: ΔE total 320.0; preserves order: no

Related

• Family: tol
• Source: Paul Tol, "Colour Schemes" (SRON/EPS/TN/09-002)
• Similar categorical maps: Bright, Dark, Discrete rainbow, High Contrast, Land Cover, Light, Muted, Pale
• All colormaps