Color

#596778

#596778
hex#596778
rgbrgb(89, 103, 120)
hslhsl(213, 15%, 41%)
oklchoklch(0.508 0.032 253.4)
Closest name: Alley Cat (#656874)Relative luminance 0.1318

Colors that go with #596778

Charcoal, Sienna and Amber 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 →

#786a59

#597778 · #5a5978

#785967 · #677859

Split-complementary

Open in tool →

#785a59 · #777859

#785977 · #786a59 · #59785a

Contrast

#596778 as textRatioAAAA largeAAAFix
Aaon white
5.78:1passpassfail
  • AAA: use #4e5a6a as the text (7.01:1)
Aaon black
3.64:1failpassfail
  • AA: use #66768a as the text (4.52:1)
  • AAA: use #8a97a8 as the text (7.07:1)
  • AA: or shift the background to #e3e3e3 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #596778 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 #596778
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 #596778 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/596778-9ca9c4-df584e-1f202d-e9f0f1?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