Color

#583e6a

#583e6a
hex#583e6a
rgbrgb(88, 62, 106)
hslhsl(275, 26%, 33%)
oklchoklch(0.412 0.078 310.5)
Closest name: Haunted Candelabra (#57446a)Relative luminance 0.0656

Colors that go with #583e6a

Blue, 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 →

#516a3e

#423e6a · #6a3e66

#6a583e · #3e6a58

Split-complementary

Open in tool →

#666a3e · #3e6a42

#6a423e · #516a3e · #3e666a

Contrast

#583e6a as textRatioAAAA largeAAAFix
Aaon white
9.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #8c68a6 as the text (4.65:1)
  • AAA: use #a78bbb as the text (7.05:1)
  • AA: or shift the background to #b8b8b8 (4.58:1)
  • AAA: or shift the background to #e3e3e3 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #583e6a 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 #583e6a
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 #583e6a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/583e6a-b89cc4-c0cb62-2d1f2d-eae9f1?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