Color

#512fa7

#512fa7
hex#512fa7
rgbrgb(81, 47, 167)
hslhsl(257, 56%, 42%)
oklchoklch(0.423 0.18 289.4)
Closest name: rebeccapurple (#663399)Relative luminance 0.0657

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#85a72f

#2f49a7 · #8d2fa7

#a7512f · #2fa751

Split-complementary

Open in tool →

#a78d2f · #49a72f

#a72f49 · #85a72f · #2fa78d

Contrast

#512fa7 as textRatioAAAA largeAAAFix
Aaon white
9.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #8060d2 as the text (4.52:1)
  • AAA: use #a088dd as the text (7.06:1)
  • AA: or shift the background to #b8b8b8 (4.57:1)
  • AAA: or shift the background to #e3e3e3 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #512fa7 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

#512fa7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #512fa7
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #512fa7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/512fa7-ac9cc4-dfc24e-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