Color

#596c51

#596c51
hex#596c51
rgbrgb(89, 108, 81)
hslhsl(102, 14%, 37%)
oklchoklch(0.508 0.047 136.5)
Closest name: Cactus (#5b6f55)Relative luminance 0.1344

Colors that go with #596c51

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 #596c51

Tints & shades

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

Harmonies

Complementary

Open in tool →

#64516c

#666c51 · #516c56

#51596c · #6c5159

Split-complementary

Open in tool →

#56516c · #6c5166

#51666c · #64516c · #6c5651

Contrast

#596c51 as textRatioAAAA largeAAAFix
Aaon white
5.69:1passpassfail
  • AAA: use #4d5d46 as the text (7.07:1)
Aaon black
3.69:1failpassfail
  • AA: use #687d5e as the text (4.68:1)
  • AAA: use #869c7c as the text (7.06:1)
  • AA: or shift the background to #e6e6e6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #596c51 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 #596c51
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 #596c51 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/596c51-a7bea2-6e4edf-1f2d21-eff1e9?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