Color

#665f7c

#665f7c
hex#665f7c
rgbrgb(102, 95, 124)
hslhsl(254, 13%, 43%)
oklchoklch(0.503 0.046 295.8)
Closest name: Plummy (#675a75)Relative luminance 0.1246

Colors that go with #665f7c

Charcoal, Sea Green and Champagne 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.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#757c5f

#5f677c · #745f7c

#7c665f · #5f7c66

Split-complementary

Open in tool →

#7c745f · #677c5f

#7c5f67 · #757c5f · #5f7c74

Contrast

#665f7c as textRatioAAAA largeAAAFix
Aaon white
6.01:1passpassfail
  • AAA: use #5a546d as the text (7.18:1)
Aaon black
3.49:1failpassfail
  • AA: use #797292 as the text (4.63:1)
  • AAA: use #9792ab as the text (7.02:1)
  • AA: or shift the background to #e0e0e0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #665f7c as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #665f7c
live endpoint

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.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #665f7c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/665f7c-aa9cc4-dfbb4e-291f2d-e9ebf1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md