Color

#3c49dd

#3c49dd
hex#3c49dd
rgbrgb(60, 73, 221)
hslhsl(235, 70%, 55%)
oklchoklch(0.496 0.222 271.4)
Closest name: Blurple (#5539cc)Relative luminance 0.1095

Colors that go with #3c49dd

Charcoal, Sea Green 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.

Real palettes that use #3c49dd

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#ddcf3c

#3c9add · #7f3cdd

#dd3c49 · #49dd3c

Split-complementary

Open in tool →

#dd7f3c · #9add3c

#dd3c9a · #ddcf3c · #3cdd7f

Contrast

#3c49dd as textRatioAAAA largeAAAFix
Aaon white
6.58:1passpassfail
  • AAA: use #3341db as the text (7.19:1)
Aaon black
3.19:1failpassfail
  • AA: use #5f6ae3 as the text (4.66:1)
  • AAA: use #868eea as the text (7.07:1)
  • AA: or shift the background to #d6d6d6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c49dd 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

#3c49dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c49dd
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 #3c49dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c49dd-9e9cc4-df8d4e-241f2d-e9eef1?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