Color

#3928cc

#3928cc
hex#3928cc
rgbrgb(57, 40, 204)
hslhsl(246, 67%, 48%)
oklchoklch(0.432 0.234 275)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0675

Colors that go with #3928cc

Charcoal, Sea Green 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 →

#bccc28

#286acc · #8b28cc

#cc3928 · #28cc39

Split-complementary

Open in tool →

#cc8b28 · #6acc28

#cc286a · #bccc28 · #28cc8b

Contrast

#3928cc as textRatioAAAA largeAAAFix
Aaon white
8.94:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #7266e1 as the text (4.7:1)
  • AAA: use #958ce8 as the text (7.19:1)
  • AA: or shift the background to #b8b8b8 (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3928cc 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

#3928cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3928cc
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 #3928cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3928cc-a59cc4-dfa74e-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