Color

#665c64

#665c64
hex#665c64
rgbrgb(102, 92, 100)
hslhsl(312, 5%, 38%)
oklchoklch(0.487 0.018 332.5)
Closest name: Fedora (#625665)Relative luminance 0.114

Colors that go with #665c64

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5c665e

#635c66 · #665c5f

#64665c · #5c6466

Split-complementary

Open in tool →

#5f665c · #5c6663

#66635c · #5c665e · #5c5f66

Contrast

#665c64 as textRatioAAAA largeAAAFix
Aaon white
6.4:1passpassfail
  • AAA: use #5e555c as the text (7.17:1)
Aaon black
3.28:1failpassfail
  • AA: use #7e727b as the text (4.58:1)
  • AAA: use #9e949c as the text (7.17:1)
  • AA: or shift the background to #d9d9d9 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #665c64 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

#665c64 reads as neutral, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #665c64
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 #665c64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/665c64-a2beb0-c859d4-1f2d2b-eaf1e9?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