Color

#512cd8

#512cd8
hex#512cd8
rgbrgb(81, 44, 216)
hslhsl(253, 69%, 51%)
oklchoklch(0.467 0.239 281.8)
Closest name: Blurple (#5539cc)Relative luminance 0.0851

Colors that go with #512cd8

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 →

#b3d82c

#2c5dd8 · #a72cd8

#d8512c · #2cd851

Split-complementary

Open in tool →

#d8a72c · #5dd82c

#d82c5d · #b3d82c · #2cd8a7

Contrast

#512cd8 as textRatioAAAA largeAAAFix
Aaon white
7.77:1passpasspassPasses AAA — no fix needed.
Aaon black
2.7:1failfailfail
  • AA: use #7c60e2 as the text (4.63:1)
  • AAA: use #9c86e9 as the text (7:1)
  • AA: or shift the background to #c7c7c7 (4.6:1)
  • AAA: or shift the background to #f5f5f5 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #512cd8 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

#512cd8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #512cd8
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 #512cd8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/512cd8-a99cc4-dfb84e-281f2d-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