seestars (npm): See Stars • a lightweight set of utilities to take an sRGB or displayP3 color, and extract the CIE Y relative luminance, and then convert to CIE L* (perceptual lightness). Takes RGB colors as simple arrays (as created with colorParsley). Bonus utilities t
Keywords: CSS|CSS3|CSS4|CSS5|HTML|PDF|RTF|sRGB|RGB|P3|displayP3|Adobe RGB|LCh|Lstar|color|colour|colors|colours|contrast|lightness|brightness|luminance|design tools|string parsing|HSL|HSV|HWB|RGB parsing|hex string|regex|apca|cie|cielab|cieluv|lstar|microcolor|srgb