Color

#64677d

#64677d
hex#64677d
rgbrgb(100, 103, 125)
hslhsl(233, 11%, 44%)
oklchoklch(0.519 0.035 279)
Closest name: Ashen Whisper (#646b7a)Relative luminance 0.1389

Colors that go with #64677d

Charcoal, Amber 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 →

#7d7a64

#64737d · #6d647d

#7d6467 · #677d64

Split-complementary

Open in tool →

#7d6d64 · #737d64

#7d6473 · #7d7a64 · #647d6d

Contrast

#64677d as textRatioAAAA largeAAAFix
Aaon white
5.56:1passpassfail
  • AAA: use #545669 as the text (7.21:1)
Aaon black
3.78:1failpassfail
  • AA: use #71758e as the text (4.64:1)
  • AAA: use #9396a9 as the text (7.18:1)
  • AA: or shift the background to #e8e8e8 (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 #64677d 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 #64677d
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 #64677d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/64677d-9c9cc4-df884e-241f2d-e9eef1?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