Color

#64908f

#64908f
hex#64908f
rgbrgb(100, 144, 143)
hslhsl(179, 18%, 48%)
oklchoklch(0.621 0.048 194.2)
Closest name: Cavolo Nero (#72939e)Relative luminance 0.2464

Colors that go with #64908f

Charcoal, Copper and Burlywood 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 →

#906465

#64907a · #647b90

#906490 · #909064

Split-complementary

Open in tool →

#90647b · #907a64

#7a6490 · #906465 · #7b9064

Contrast

#64908f as textRatioAAAA largeAAAFix
Aaon white
3.54:1failpassfail
  • AA: use #567b7b as the text (4.65:1)
  • AAA: use #415d5d as the text (7.12:1)
  • AA: or shift the background to #212121 (4.55:1)
Aaon black
5.93:1passpassfail
  • AAA: use #729d9c as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #64908f 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 #64908f
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 #64908f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/64908f-a2bbbe-d45996-1f272d-e9f1ed?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