Color

#51145c

#51145c
hex#51145c
rgbrgb(81, 20, 92)
hslhsl(291, 64%, 22%)
oklchoklch(0.328 0.13 321)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0302

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f5c14

#2d145c · #5c1443

#5c5114 · #145c51

Split-complementary

Open in tool →

#435c14 · #145c2d

#5c2d14 · #1f5c14 · #14435c

Contrast

#51145c as textRatioAAAA largeAAAFix
Aaon white
13.09:1passpasspassPasses AAA — no fix needed.
Aaon black
1.6:1failfailfail
  • AA: use #bb36d3 as the text (4.58:1)
  • AAA: use #cf71e0 as the text (7.09:1)
  • AA: or shift the background to #999999 (4.59:1)
  • AAA: or shift the background to #bfbfbf (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51145c 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

#51145c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #51145c
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 #51145c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51145c-bf9fc1-a4cb62-2d1f29-ece9f1?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