Color

#583fca

#583fca
hex#583fca
rgbrgb(88, 63, 202)
hslhsl(251, 57%, 52%)
oklchoklch(0.483 0.203 284)
Closest name: Blurple (#5539cc)Relative luminance 0.0989

Colors that go with #583fca

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 →

#b1ca3f

#3f6bca · #9e3fca

#ca583f · #3fca58

Split-complementary

Open in tool →

#ca9e3f · #6bca3f

#ca3f6b · #b1ca3f · #3fca9e

Contrast

#583fca as textRatioAAAA largeAAAFix
Aaon white
7.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #7863d4 as the text (4.53:1)
  • AAA: use #9a8bdf as the text (7.13:1)
  • AA: or shift the background to #cfcfcf (4.53:1)
  • AAA: or shift the background to #ffffff (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 #583fca 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

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

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

tool url/palettes/new/583fca-a89cc4-dfb34e-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