Color

#513dc2

#513dc2
hex#513dc2
rgbrgb(81, 61, 194)
hslhsl(249, 52%, 50%)
oklchoklch(0.467 0.197 282.5)
Closest name: Blurple (#5539cc)Relative luminance 0.0898

Colors that go with #513dc2

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 →

#aec23d

#3d6cc2 · #933dc2

#c2513d · #3dc251

Split-complementary

Open in tool →

#c2933d · #6cc23d

#c23d6c · #aec23d · #3dc293

Contrast

#513dc2 as textRatioAAAA largeAAAFix
Aaon white
7.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #7768cf as the text (4.67:1)
  • AAA: use #978bda as the text (7.02:1)
  • AA: or shift the background to #c9c9c9 (4.54:1)
  • AAA: or shift the background to #f7f7f7 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #513dc2 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

#513dc2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #513dc2
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 #513dc2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/513dc2-a79cc4-dfae4e-271f2d-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