Colour the Calculator Your Way
Your page, surface, accent and text colours, applied to every voice table at once. Each pairing is scored for contrast before you keep it, and nothing leaves the browser.
Theme builder controls
How it works
- Four inputs. Page, surface, accent, text. Every other colour the tables use, the hover accent, secondary and muted text and the row borders, is computed from those, so two tables of voices on one page never disagree about the palette.
- Contrast in numbers. Four pairings are measured on each change: text on the page and on surfaces, button text, and secondary text, each shown as a ratio against the 4.5:1 target.
- Stays on this device. Save it to keep it in this browser as the custom theme; switch back from the header’s theme menu at any time.