Crayon Box
Open in tool →Red, teal and yellow at crayon saturation — joyful, but on white with black type so it stays readable for grown-ups.
Color
#fa5b4crgb(250, 91, 76)hsl(5, 95%, 64%)oklch(0.68 0.197 28.7)Charcoal, Light Sea Green 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.
Charcoal is the body-text near-black for #fa5b4c: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Light Sea Green sits directly opposite #fa5b4c on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber is paired with #fa5b4c in 8 real palettes, including Ember and Heatwave, as the accent.
7 real palettes, including Monzo's brand system and Readymag's brand system put Blue beside #fa5b4c, as the accent.
Designers have shipped Cadet Blue with #fa5b4c: 4 real palettes, including Alpine and Diner, as the supporting colour.
Designers have shipped Cobalt Blue with #fa5b4c: 5 real palettes, including NASA's brand system and Tide's brand system, as the lead colour.
Cornflower Blue is a split-complement of #fa5b4c: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson is paired with #fa5b4c in 9 real palettes, including Pizza Hut's brand system and Snyk's brand system, as the supporting colour.
| #fa5b4c as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.15:1 | fail | pass | fail | |
Aaon black | 6.67:1 | 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 #fa5b4c as the background.
#fa5b4c 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 #fa5b4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/fa5b4c-c4a49c-62cba1-2d261f-f1e9ec?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