Color

#583ec1

#583ec1
hex#583ec1
rgbrgb(88, 62, 193)
hslhsl(252, 51%, 50%)
oklchoklch(0.474 0.194 285.4)
Closest name: Blurple (#5539cc)Relative luminance 0.0937

Colors that go with #583ec1

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 →

#a7c13e

#3e65c1 · #9a3ec1

#c1583e · #3ec158

Split-complementary

Open in tool →

#c19a3e · #65c13e

#c13e65 · #a7c13e · #3ec19a

Contrast

#583ec1 as textRatioAAAA largeAAAFix
Aaon white
7.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #7a65cd as the text (4.57:1)
  • AAA: use #9b8bda as the text (7.1:1)
  • AA: or shift the background to #cccccc (4.55:1)
  • AAA: or shift the background to #fafafa (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #583ec1 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

#583ec1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #583ec1
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 #583ec1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/583ec1-a99cc4-dfb64e-281f2d-e9ecf1?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