Color

#511ded

#511ded
hex#511ded
rgbrgb(81, 29, 237)
hslhsl(255, 85%, 52%)
oklchoklch(0.477 0.271 280.1)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0874

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b9ed1d

#1d51ed · #b91ded

#ed511d · #1ded51

Split-complementary

Open in tool →

#edb91d · #51ed1d

#ed1d51 · #b9ed1d · #1dedb9

Contrast

#511ded as textRatioAAAA largeAAAFix
Aaon white
7.64:1passpasspassPasses AAA — no fix needed.
Aaon black
2.75:1failfailfail
  • AA: use #805af2 as the text (4.66:1)
  • AAA: use #a184f5 as the text (7.13:1)
  • AA: or shift the background to #c7c7c7 (4.52:1)
  • AAA: or shift the background to #f5f5f5 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #511ded 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

#511ded reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511ded
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 #511ded and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511ded-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