Chalkboard
Open in tool →Slate green with chalk cream and a coral — nostalgic without being twee.
Color
#efbe61rgb(239, 190, 97)hsl(39, 82%, 66%)oklch(0.827 0.124 81.6)Charcoal, Deep Sky Blue and Light 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 #efbe61: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Deep Sky Blue is a split-complement of #efbe61: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Light Sky Blue sits directly opposite #efbe61 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Designers have shipped Cadet Blue with #efbe61: 4 real palettes, including Coastal and Diner, as the lead colour.
4 real palettes, including Coffee Bar and Midnight Luxe put Champagne beside #efbe61, as that palette's text colour.
Designers have shipped Cornflower Blue with #efbe61: 6 real palettes, including Blueprint and Mastodon hosted on mastodon.social's brand system, as the supporting colour.
Crimson is paired with #efbe61 in 9 real palettes, including McDonald's's brand system and Diner, as the supporting colour.
Dark Olive Green shows up next to #efbe61 in 5 real palettes, including Farmers Market and Undergrowth, as the supporting colour.
| #efbe61 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 #efbe61 as the background.
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Slate green with chalk cream and a coral — nostalgic without being twee.
Sea-teal, sky and sand — bright without shouting; works for travel, wellness, and anything near water.
Washed coral, faded aqua and a mustard — the 1970s film look, desaturated so it feels found rather than designed.
Sea blue with sun-bleached yellow and a coral — striped-canvas summer, softened so it works on a screen.
#efbe61 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 #efbe61 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/efbe61-c4ba9c-62b9cb-2c2d1f-f1ebe9?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