Color

#3816fe

#3816fe
hex#3816fe
rgbrgb(56, 22, 254)
hslhsl(249, 99%, 54%)
oklchoklch(0.476 0.296 271.7)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0857

Colors that go with #3816fe

Charcoal, Cobalt Blue and Crimson 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 →

#dbfe16

#1667fe · #ad16fe

#fe3816 · #16fe38

Split-complementary

Open in tool →

#fead16 · #67fe16

#fe1667 · #dbfe16 · #16fead

Contrast

#3816fe as textRatioAAAA largeAAAFix
Aaon white
7.74:1passpasspassPasses AAA — no fix needed.
Aaon black
2.71:1failfailfail
  • AA: use #7158fe as the text (4.53:1)
  • AAA: use #9785fe as the text (7.1:1)
  • AA: or shift the background to #c7c7c7 (4.58:1)
  • AAA: or shift the background to #f5f5f5 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3816fe as the background.

Brands using this color

Fonts for this mood

#3816fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3816fe
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 #3816fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3816fe-a79cc4-dfae4e-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