Color

#596d6e

#596d6e
hex#596d6e
rgbrgb(89, 109, 110)
hslhsl(183, 11%, 39%)
oklchoklch(0.519 0.024 200.2)
Closest name: Batman (#656e72)Relative luminance 0.1419

Colors that go with #596d6e

Charcoal, Champagne and Cobalt Blue 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.

Real palettes that use #596d6e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6e5a59

#596e65 · #59626e

#6e596d · #6d6e59

Split-complementary

Open in tool →

#6e5962 · #6e6559

#65596e · #6e5a59 · #626e59

Contrast

#596d6e as textRatioAAAA largeAAAFix
Aaon white
5.47:1passpassfail
  • AAA: use #4b5c5d as the text (7.03:1)
Aaon black
3.84:1failpassfail
  • AA: use #62797a as the text (4.54:1)
  • AAA: use #829a9b as the text (7.04:1)
  • AA: or shift the background to #ebebeb (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #596d6e 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 #596d6e
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 #596d6e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/596d6e-a2b9be-d4598e-1f262d-e9f1ee?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