Color

#512ac6

#512ac6
hex#512ac6
rgbrgb(81, 42, 198)
hslhsl(255, 65%, 47%)
oklchoklch(0.447 0.221 284.5)
Closest name: Blurple (#5539cc)Relative luminance 0.0748

Colors that go with #512ac6

Charcoal, Denim 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 →

#9fc62a

#2a51c6 · #9f2ac6

#c6512a · #2ac651

Split-complementary

Open in tool →

#c69f2a · #51c62a

#c62a51 · #9fc62a · #2ac69f

Contrast

#512ac6 as textRatioAAAA largeAAAFix
Aaon white
8.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #7f5fdd as the text (4.58:1)
  • AAA: use #a089e6 as the text (7.22:1)
  • AA: or shift the background to #bfbfbf (4.57:1)
  • AAA: or shift the background to #ebebeb (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 #512ac6 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

#512ac6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #512ac6
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 #512ac6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/512ac6-ab9cc4-dfbd4e-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