Heatwave
Open in tool →Blaze orange and hot yellow with one cold blue — the high-noon palette; use the blue where the eye needs to rest.
Color
#fd5426rgb(253, 84, 38)hsl(13, 98%, 57%)oklch(0.673 0.213 35.3)Cadet Blue, Charcoal and Amber 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.
Cadet Blue sits directly opposite #fd5426 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal is the body-text near-black for #fd5426: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Amber is paired with #fd5426 in 8 real palettes, including Heatwave and Ember, as the supporting colour.
7 real palettes, including Readymag's brand system and Monzo's brand system put Blue beside #fd5426, as the supporting colour.
Designers have shipped Cobalt Blue with #fd5426: 4 real palettes, including Tide's brand system and NASA's brand system, as the lead colour.
Cornflower Blue is a split-complement of #fd5426: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson is paired with #fd5426 in 9 real palettes, including Pizza Hut's brand system and Wise's brand system, as the supporting colour.
Designers have shipped Denim with #fd5426: 15 real palettes, including Strava's brand system and Soundcloud's brand system, as the accent.
| #fd5426 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.24:1 | fail | pass | fail | |
Aaon black | 6.47:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fd5426 as the background.
#fd5426 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 #fd5426 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/fd5426-c4a99c-62cbaf-2d281f-f1e9eb?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