Color
#66243a
#66243argb(102, 36, 58)hsl(340, 48%, 27%)oklch(0.365 0.097 2.5)Colors that go with #66243a
Teal, Copper and Crimson 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.
Teal #008080
complementaryshippedTeal sits directly opposite #66243a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Copper #b87333
shippedDesigners have shipped Copper with #66243a: 5 real palettes, including Bramble and Notion's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #66243a in 5 real palettes, including M&M's's brand system and Burger King's brand system, as the supporting colour.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #66243a: 4 real palettes, including Macaron and Nursery, as the supporting colour.
Sage Green #9caf88
shippedDesigners have shipped Sage Green with #66243a: 5 real palettes, including Stone and Resort, as the supporting colour.
Slate Gray #708090
shipped5 real palettes, including Bookshop and Sepia Mono put Slate Gray beside #66243a, as the supporting colour.
Tomato #ff6347
shipped4 real palettes, including Golden Hour and Harley-Davidson's brand system put Tomato beside #66243a, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #66243a: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #66243a
Tints & shades
Harmonies
Contrast
| #66243a as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.18:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.88:1 | 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 #66243a as the background.
Brands using this color
Fonts for this mood
#66243a reads as warm, 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 #66243a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/66243a-c49ca5-62cb75-2d211f-f1e9f0?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