Color

#2909fb

#2909fb
hex#2909fb
rgbrgb(41, 9, 251)
hslhsl(248, 97%, 51%)
oklchoklch(0.459 0.301 268.7)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0763

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dbfb09

#0962fb · #a209fb

#fb2909 · #09fb29

Split-complementary

Open in tool →

#fba209 · #62fb09

#fb0962 · #dbfb09 · #09fba2

Contrast

#2909fb as textRatioAAAA largeAAAFix
Aaon white
8.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.53:1failfailfail
  • AA: use #6f59fc as the text (4.51:1)
  • AAA: use #9686fd as the text (7.13:1)
  • AA: or shift the background to #bfbfbf (4.52:1)
  • AAA: or shift the background to #ededed (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2909fb as the background.

Brands using this color

Fonts for this mood

#2909fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2909fb
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 #2909fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2909fb-a69cc4-dfac4e-271f2d-e9ecf1?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