Color

#63596e

#63596e
hex#63596e
rgbrgb(99, 89, 110)
hslhsl(269, 11%, 39%)
oklchoklch(0.481 0.035 306.6)
Closest name: Plummy (#675a75)Relative luminance 0.1092

Colors that go with #63596e

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 →

#646e59

#59596e · #6e596e

#6e6359 · #596e63

Split-complementary

Open in tool →

#6e6e59 · #596e59

#6e5959 · #646e59 · #596e6e

Contrast

#63596e as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #5e5469 as the text (7.12:1)
Aaon black
3.18:1failpassfail
  • AA: use #7c6f8b as the text (4.5:1)
  • AAA: use #9e93a9 as the text (7.2:1)
  • AA: or shift the background to #d6d6d6 (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 #63596e 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 #63596e
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 #63596e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/63596e-b49cc4-cbcb62-2c1f2d-e9e9f1?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