Color

#3f2ae5

#3f2ae5
hex#3f2ae5
rgbrgb(63, 42, 229)
hslhsl(247, 78%, 53%)
oklchoklch(0.466 0.258 274.7)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0837

Colors that go with #3f2ae5

Charcoal, Sea Green and Amber 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 →

#cfe52a

#2a71e5 · #9d2ae5

#e53f2a · #2ae53f

Split-complementary

Open in tool →

#e59d2a · #71e52a

#e52a71 · #cfe52a · #2ae59d

Contrast

#3f2ae5 as textRatioAAAA largeAAAFix
Aaon white
7.85:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #7060eb as the text (4.56:1)
  • AAA: use #9589f0 as the text (7.11:1)
  • AA: or shift the background to #c4c4c4 (4.5:1)
  • AAA: or shift the background to #f2f2f2 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f2ae5 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

#3f2ae5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f2ae5
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 #3f2ae5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f2ae5-a59cc4-dfaa4e-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