Color

#3d67ff

#3d67ff
hex#3d67ff
rgbrgb(61, 103, 255)
hslhsl(227, 100%, 62%)
oklchoklch(0.578 0.23 266.9)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1791

Colors that go with #3d67ff

Charcoal, Crimson 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 →

#ffd53d

#3dc8ff · #743dff

#ff3d67 · #67ff3d

Split-complementary

Open in tool →

#ff743d · #c8ff3d

#ff3dc8 · #ffd53d · #3dff74

Contrast

#3d67ff as textRatioAAAA largeAAAFix
Aaon white
4.58:1passpassfail
  • AAA: use #0037ff as the text (7.02:1)
Aaon black
4.58:1passpassfail
  • AAA: use #708fff as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d67ff as the background.

Brands using this color

Fonts for this mood

#3d67ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d67ff
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 #3d67ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d67ff-9ca0c4-df7a4e-221f2d-e9eff1?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