Blue Mono
Open in tool →One blue at four lightnesses — monochromatic in the colour-theory sense; the deep step is the text, the pale step the surface tint.
Color
#202255rgb(32, 34, 85)hsl(238, 45%, 23%)oklch(0.283 0.091 277.2)Charcoal, Dark Olive Green and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal is the text near-black for #202255: softer than #000 and cool enough to feel like part of the same palette.
Dark Olive Green sits directly opposite #202255 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Sea Green completes a triad with #202255 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Slate Blue is #202255's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Steel Blue is #202255's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber is paired with #202255 in 4 real palettes, including Beach Hut and Blueprint, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Blue is paired with #202255 in 17 real palettes, including Monzo's brand system and Sketch's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Burlywood is paired with #202255 in 4 real palettes, including Coastal and Chalkboard, as the accent — a combination designers have actually shipped, not a computed rotation.
| #202255 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 14.77:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.42:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #202255 as the background.
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
One blue at four lightnesses — monochromatic in the colour-theory sense; the deep step is the text, the pale step the surface tint.
#202255 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #202255 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/202255-9f9cc4-df944e-251f2d-e9edf1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md