Color

#573acb

#573acb
hex#573acb
rgbrgb(87, 58, 203)
hslhsl(252, 58%, 51%)
oklchoklch(0.476 0.21 284.2)
Closest name: Blurple (#5539cc)Relative luminance 0.0936

Colors that go with #573acb

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 →

#aecb3a

#3a65cb · #9f3acb

#cb573a · #3acb57

Split-complementary

Open in tool →

#cb9f3a · #65cb3a

#cb3a65 · #aecb3a · #3acb9f

Contrast

#573acb as textRatioAAAA largeAAAFix
Aaon white
7.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #7962d5 as the text (4.52:1)
  • AAA: use #9b8ae0 as the text (7.11:1)
  • 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 #573acb 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

#573acb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #573acb
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 #573acb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/573acb-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