All preset gradients are in the domain [0..1]. Uniform B-splines is used to interpolate the colors.
colorgrad::preset::br_bg()
colorgrad::preset::pr_gn()
colorgrad::preset::pi_yg()
colorgrad::preset::pu_or()
colorgrad::preset::rd_bu()
colorgrad::preset::rd_gy()
colorgrad::preset::rd_yl_bu()
colorgrad::preset::rd_yl_gn()
colorgrad::preset::spectral()
colorgrad::preset::blues()
colorgrad::preset::greens()
colorgrad::preset::greys()
colorgrad::preset::oranges()
colorgrad::preset::purples()
colorgrad::preset::reds()
colorgrad::preset::turbo()
colorgrad::preset::viridis()
colorgrad::preset::inferno()
colorgrad::preset::magma()
colorgrad::preset::plasma()
colorgrad::preset::cividis()
colorgrad::preset::warm()
colorgrad::preset::cool()
colorgrad::preset::cubehelix_default()
colorgrad::preset::bu_gn()
colorgrad::preset::bu_pu()
colorgrad::preset::gn_bu()
colorgrad::preset::or_rd()
colorgrad::preset::pu_bu_gn()
colorgrad::preset::pu_bu()
colorgrad::preset::pu_rd()
colorgrad::preset::rd_pu()
colorgrad::preset::yl_gn_bu()
colorgrad::preset::yl_gn()
colorgrad::preset::yl_or_br()
colorgrad::preset::yl_or_rd()
colorgrad::preset::rainbow()
colorgrad::preset::sinebow()