Color

#3f3dae

#3f3dae
hex#3f3dae
rgbrgb(63, 61, 174)
hslhsl(241, 48%, 46%)
oklchoklch(0.436 0.175 277.1)
Closest name: Blueberry (#464196)Relative luminance 0.0745

Colors that go with #3f3dae

Charcoal, Sea Green and Steel 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 →

#acae3d

#3d73ae · #773dae

#ae3f3d · #3dae3f

Split-complementary

Open in tool →

#ae773d · #73ae3d

#ae3d73 · #acae3d · #3dae77

Contrast

#3f3dae as textRatioAAAA largeAAAFix
Aaon white
8.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.49:1failfailfail
  • AA: use #6d6ccb as the text (4.66:1)
  • AAA: use #8f8ed7 as the text (7.02:1)
  • AA: or shift the background to #bfbfbf (4.59:1)
  • AAA: or shift the background to #ebebeb (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f3dae 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

#3f3dae reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f3dae
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 #3f3dae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f3dae-a19cc4-df9b4e-261f2d-e9edf1?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