Color

#597f91

#597f91
hex#597f91
rgbrgb(89, 127, 145)
hslhsl(199, 24%, 46%)
oklchoklch(0.575 0.051 229)
Closest name: Citadel (#6a7f8b)Relative luminance 0.1935

Colors that go with #597f91

Charcoal, Copper 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.

Real palettes that use #597f91

Tints & shades

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

Harmonies

Complementary

Open in tool →

#916b59

#599187 · #596391

#915980 · #809159

Split-complementary

Open in tool →

#915963 · #918759

#875991 · #916b59 · #639159

Contrast

#597f91 as textRatioAAAA largeAAAFix
Aaon white
4.31:1failpassfail
  • AA: use #557a8b as the text (4.62:1)
  • AAA: use #405c68 as the text (7.12:1)
  • AA: or shift the background to #0d0d0d (4.51:1)
Aaon black
4.87:1passpassfail
  • AAA: use #779bac as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #597f91 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 #597f91
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 #597f91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/597f91-9cb3c4-df4e66-1f232d-e9f1f0?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