Color

#5b536e

#5b536e
hex#5b536e
rgbrgb(91, 83, 110)
hslhsl(258, 14%, 38%)
oklchoklch(0.46 0.044 298.2)
Closest name: Freefall (#565266)Relative luminance 0.0954

Colors that go with #5b536e

Teal, Copper and Crimson 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 →

#666e53

#53596e · #69536e

#6e5b53 · #536e5b

Split-complementary

Open in tool →

#6e6953 · #596e53

#6e5359 · #666e53 · #536e69

Contrast

#5b536e as textRatioAAAA largeAAAFix
Aaon white
7.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #7b7194 as the text (4.63:1)
  • AAA: use #9991ac as the text (7:1)
  • AA: or shift the background to #cfcfcf (4.64:1)
  • AAA: or shift the background to #fcfcfc (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b536e 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 #5b536e
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 #5b536e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b536e-ad9cc4-dfc44e-291f2d-e9ebf1?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