Blueprint
Open in tool →Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'.
Color
#f1bf1ergb(241, 191, 30)hsl(46, 88%, 53%)oklch(0.826 0.163 88.8)Charcoal, Cornflower Blue and Deep Sky Blue 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 body-text near-black for #f1bf1e: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Cornflower Blue sits directly opposite #f1bf1e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Deep Sky Blue is a split-complement of #f1bf1e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson is paired with #f1bf1e in 6 real palettes, including Tabloid and Wells Fargo's brand system, as the lead colour.
Dark Olive Green shows up next to #f1bf1e in 4 real palettes, including Farmers Market and Miro's brand system, as the supporting colour.
Designers have shipped Denim with #f1bf1e: 11 real palettes, including Wikipedia's brand system and McDonald's's brand system, as the supporting colour.
Designers have shipped Dodger Blue with #f1bf1e: 7 real palettes, including Google's brand system and Heatwave, as the lead colour.
Emerald Green is paired with #f1bf1e in 4 real palettes, including Meadow and Ubereats's brand system, as the lead colour.
| #f1bf1e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.72:1 | fail | fail | fail | |
Aaon black | 12.21:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f1bf1e as the background.
Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'.
Rust, pine and sun — high-visibility earth tones that read at a distance and on a trail sign.
The three colours a maple goes through in October, on a warm white — loud, seasonal, and readable because the type is near-black.
#f1bf1e reads as warm, vivid, playful. 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 #f1bf1e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/f1bf1e-c4bf9c-62adcb-2a2d1f-f1ece9?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