Color

#512db4

#512db4
hex#512db4
rgbrgb(81, 45, 180)
hslhsl(256, 60%, 44%)
oklchoklch(0.433 0.197 287.2)
Closest name: Blurple (#5539cc)Relative luminance 0.0692

Colors that go with #512db4

Charcoal, Royal Blue and Sea Green 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 →

#90b42d

#2d4cb4 · #942db4

#b4512d · #2db451

Split-complementary

Open in tool →

#b4942d · #4cb42d

#b42d4c · #90b42d · #2db494

Contrast

#512db4 as textRatioAAAA largeAAAFix
Aaon white
8.81:1passpasspassPasses AAA — no fix needed.
Aaon black
2.38:1failfailfail
  • AA: use #8060d7 as the text (4.57:1)
  • AAA: use #a089e1 as the text (7.16:1)
  • AA: or shift the background to #bababa (4.54:1)
  • AAA: or shift the background to #e6e6e6 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #512db4 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

#512db4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #512db4
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 #512db4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/512db4-ab9cc4-dfbf4e-291f2d-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