colouriser

Contrast and accessibility

How much contrast text needs, how to design for colour blindness, and why dark mode is more than flipping the colours, so everyone can read what you make.

  • Building a paletteContrast and accessibility

    Building a brand palette that works: give every colour a job

    A brand palette works when every colour has a job. On screens, neutrals cover most of the page and your brand colour marks what people click. Here's where the 60-30-10 rule really comes from, how many colours you need, and why your brand colour may fail as text.

    15 min read

  • Screens and printContrast and accessibility

    Dark mode isn't just flipping the colours

    Reversing your colours turns a blue brand mustard, and even automatic dark modes turn yellows muddy and purples pink. A good dark mode is a lightness job first: near-black backgrounds, off-white text, and every accent re-picked lighter until it reads. Here's why blues soften and reds can stay vivid, with a recipe for Figma and Canva.

    13 min read

  • Contrast and accessibility

    Can everyone actually read your design?

    The 4.5:1 contrast rule rests on a 1988 office-monitor standard, an allowance for older eyes and a fixed guess about room lighting. It's right most of the time, it never forbids your brand colour, and it flatters you in one place: light text on dark backgrounds. Where the number came from, where it slips, and whether to switch to APCA.

    18 min read

  • Contrast and accessibility

    Designing for colour blindness

    Colour-blindness filters show the most severe form, which only about a quarter of colour-blind people have. The check that works is one you already know: keep neighbouring colours at least 3:1 apart in contrast, and never let colour be the only clue. Here's why, which pairs really break, and the palette that holds up.

    19 min read

  • How we see colourContrast and accessibility

    The same colour looks different in different places

    Your eye judges every colour against what surrounds it, so the same hex looks lighter on a dark page and darker on a light one. Thin lines and small text do the opposite. Here's why, how big the shift is, why a contrast checker can't see it, and what to do.

    18 min read