Color

#596e4e

#596e4e
hex#596e4e
rgbrgb(89, 110, 78)
hslhsl(99, 17%, 37%)
oklchoklch(0.512 0.055 135.1)
Closest name: Cactus (#5b6f55)Relative luminance 0.1383

Colors that go with #596e4e

Charcoal, Slate Blue 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.

Real palettes that use #596e4e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#634e6e

#6a6e4e · #4e6e53

#4e5a6e · #6e4e5a

Split-complementary

Open in tool →

#534e6e · #6e4e6a

#4e6a6e · #634e6e · #6e534e

Contrast

#596e4e as textRatioAAAA largeAAAFix
Aaon white
5.58:1passpassfail
  • AAA: use #4b5c42 as the text (7.22:1)
Aaon black
3.77:1failpassfail
  • AA: use #667d59 as the text (4.64:1)
  • AAA: use #849e76 as the text (7.13:1)
  • AA: or shift the background to #e8e8e8 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #596e4e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #596e4e
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 #596e4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/596e4e-a8bea2-664edf-1f2d21-f0f1e9?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