Color

#3a16da

#3a16da
hex#3a16da
rgbrgb(58, 22, 218)
hslhsl(251, 82%, 47%)
oklchoklch(0.434 0.259 274.9)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0654

Colors that go with #3a16da

Charcoal, Cobalt Blue and Cornflower Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b6da16

#1654da · #9c16da

#da3a16 · #16da3a

Split-complementary

Open in tool →

#da9c16 · #54da16

#da1654 · #b6da16 · #16da9c

Contrast

#3a16da as textRatioAAAA largeAAAFix
Aaon white
9.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #775def as the text (4.6:1)
  • AAA: use #9a86f3 as the text (7.08:1)
  • AA: or shift the background to #b8b8b8 (4.59:1)
  • AAA: or shift the background to #e3e3e3 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a16da 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

#3a16da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a16da
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #3a16da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a16da-a89cc4-dfb34e-281f2d-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