ncar

All 11 ncar colormaps (9 sequential and 2 diverging) with side-by-side OKLCh diagnostics for lightness, chroma, hue, and colorblind safety.

• NCL CBR drywet: sequential. Lightness spans 0.32–0.97, hue sweeps 125° from yellow to mint, and order holds under all three colorblind simulations.
• NCL CBR wet: sequential. Lightness falls monotonically from 1.00 to 0.24, hue sweeps 256° from green to blue, and order holds under all three colorblind simulations.
• GMT drywet: sequential. Lightness spans 0.33–0.88, hue sweeps 196° from yellow to violet, and order breaks under protan and tritan simulation.
• GMT topo: sequential. Lightness spans 0.61–1.00, hue sweeps 360° from red to orange, and order breaks under protan, deutan, and tritan simulation.
• MPL terrain (NCL): sequential. Lightness spans 0.40–1.00, hue sweeps 274° from violet to orange, and order breaks under protan, deutan, and tritan simulation.
• NCL precip diff 12lev: diverging. Two arms meet at a pivot of lightness 1.00, hue sweeps 187° from orange to blue, and order holds under all three colorblind simulations.
• NCL precip 15lev: sequential. Lightness spans 0.35–1.00, hue sweeps 329° from magenta to orange, and order breaks under protan, deutan, and tritan simulation.
• NCL temp 19lev: sequential. Lightness spans 0.24–0.98, hue sweeps 186° from blue to orange, and order holds under all three colorblind simulations.
• NCL temp diff 18lev: diverging. Two arms meet at a pivot of lightness 1.00, hue sweeps 186° from blue to orange, and order holds under all three colorblind simulations.
• NCL topo 15lev: sequential. Lightness spans 0.39–1.00, hue sweeps 271° from violet to orange, and order breaks under protan, deutan, and tritan simulation.
• NCL wind 17lev: sequential. Lightness spans 0.60–1.00, hue sweeps 220° from chartreuse to blue, and order breaks under protan, deutan, and tritan simulation.