Color

#3706ea

#3706ea
hex#3706ea
rgbrgb(55, 6, 234)
hslhsl(253, 95%, 47%)
oklchoklch(0.444 0.281 273)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0688

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b8ea06

#0647ea · #a906ea

#ea3706 · #06ea37

Split-complementary

Open in tool →

#eaa906 · #47ea06

#ea0647 · #b8ea06 · #06eaa9

Contrast

#3706ea as textRatioAAAA largeAAAFix
Aaon white
8.84:1passpasspassPasses AAA — no fix needed.
Aaon black
2.38:1failfailfail
  • AA: use #7a56fb as the text (4.55:1)
  • AAA: use #9d83fc as the text (7.09:1)
  • AA: or shift the background to #bababa (4.55:1)
  • AAA: or shift the background to #e6e6e6 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3706ea 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

#3706ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3706ea
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 #3706ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3706ea-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