Color

#583eb6

#583eb6
hex#583eb6
rgbrgb(88, 62, 182)
hslhsl(253, 49%, 48%)
oklchoklch(0.464 0.18 287.1)
Closest name: Blurple (#5539cc)Relative luminance 0.089

Colors that go with #583eb6

Charcoal, Sea Green 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 →

#9cb63e

#3e60b6 · #943eb6

#b6583e · #3eb658

Split-complementary

Open in tool →

#b6943e · #60b63e

#b63e60 · #9cb63e · #3eb694

Contrast

#583eb6 as textRatioAAAA largeAAAFix
Aaon white
7.56:1passpasspassPasses AAA — no fix needed.
Aaon black
2.78:1failfailfail
  • AA: use #7d67cb as the text (4.67:1)
  • AAA: use #9d8dd8 as the text (7.24:1)
  • AA: or shift the background to #c9c9c9 (4.56:1)
  • AAA: or shift the background to #f7f7f7 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #583eb6 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#583eb6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #583eb6
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 #583eb6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/583eb6-a99cc4-dfb84e-281f2d-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