Color

#634677

#634677
hex#634677
rgbrgb(99, 70, 119)
hslhsl(276, 26%, 37%)
oklchoklch(0.446 0.085 310.5)
Closest name: Drifting Violet (#5b4276)Relative luminance 0.0836

Colors that go with #634677

Charcoal, Crimson and Denim 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 →

#597746

#4b4677 · #774672

#776346 · #467763

Split-complementary

Open in tool →

#727746 · #46774b

#774b46 · #597746 · #467277

Contrast

#634677 as textRatioAAAA largeAAAFix
Aaon white
7.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #8d68a6 as the text (4.66:1)
  • AAA: use #a88bbb as the text (7.08:1)
  • AA: or shift the background to #c4c4c4 (4.5:1)
  • AAA: or shift the background to #f2f2f2 (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 #634677 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 #634677
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 #634677 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/634677-b99cc4-bfcb62-2d1f2d-eae9f1?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