Color

#3b2dfb

#3b2dfb
hex#3b2dfb
rgbrgb(59, 45, 251)
hslhsl(244, 96%, 58%)
oklchoklch(0.491 0.281 272)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0977

Colors that go with #3b2dfb

Charcoal, Amber and Cobalt 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 →

#edfb2d

#2d86fb · #a22dfb

#fb3b2d · #2dfb3b

Split-complementary

Open in tool →

#fba22d · #86fb2d

#fb2d86 · #edfb2d · #2dfba2

Contrast

#3b2dfb as textRatioAAAA largeAAAFix
Aaon white
7.11:1passpasspassPasses AAA — no fix needed.
Aaon black
2.95:1failfailfail
  • AA: use #6a5ffc as the text (4.66:1)
  • AAA: use #8f87fd as the text (7.05:1)
  • AA: or shift the background to #cfcfcf (4.56:1)
  • AAA: or shift the background to #ffffff (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b2dfb as the background.

Brands using this color

Fonts for this mood

#3b2dfb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b2dfb
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 #3b2dfb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b2dfb-a39cc4-dfa24e-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