Color
#665b6b
#665b6brgb(102, 91, 107)hsl(281, 8%, 39%)oklch(0.487 0.029 315.3)Colors that go with #665b6b
Charcoal, Champagne and Copper 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 #36454f
neutralshippedCharcoal is the text near-black that reads cleanly against #665b6b without the hard edge of pure #000.
Champagne #f7e7ce
shipped5 real palettes, including BrandSweets's brand system and Darkroom put Champagne beside #665b6b.
Copper #b87333
shippedDesigners have shipped Copper with #665b6b: 5 real palettes, including Dusk and Desert Road, as the accent.
Crimson #dc143c
shippedCrimson is paired with #665b6b in 4 real palettes, including Codecademy's brand system and Retro Pop, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #665b6b: 4 real palettes, including HP's brand system and Campus, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #665b6b in 5 real palettes, including Mid-Century and Open House, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #665b6b in 4 real palettes, including Console Light and Undergrowth, as the accent.
Midnight Blue #191970
shipped6 real palettes, including Lufthansa's brand system and Fintech Trust put Midnight Blue beside #665b6b, as the lead colour.
Real palettes that use #665b6b
Tints & shades
Harmonies
Contrast
| #665b6b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.41:1 | pass | pass | fail |
|
Aaon black | 3.27:1 | fail | 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 #665b6b as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#665b6b reads as muted, minimal. 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 #665b6b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/665b6b-ba9fc1-b6cb62-2d1f2c-ebe9f1?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