Color

#596b9b

#596b9b
hex#596b9b
rgbrgb(89, 107, 155)
hslhsl(224, 27%, 48%)
oklchoklch(0.534 0.079 268)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1501

Colors that go with #596b9b

Charcoal, Sea Green and Dark Olive Green 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 #596b9b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9b8a59

#598c9b · #69599b

#9b596b · #6b9b59

Split-complementary

Open in tool →

#9b6959 · #8c9b59

#9b598c · #9b8a59 · #599b69

Contrast

#596b9b as textRatioAAAA largeAAAFix
Aaon white
5.25:1passpassfail
  • AAA: use #49577e as the text (7.12:1)
Aaon black
4:1failpassfail
  • AA: use #6475a6 as the text (4.64:1)
  • AAA: use #8795ba as the text (7.04:1)
  • AA: or shift the background to #f0f0f0 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #596b9b 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 #596b9b
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 #596b9b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/596b9b-9ca2c4-df724e-221f2d-e9eff1?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