Color

#3c48cd

#3c48cd
hex#3c48cd
rgbrgb(60, 72, 205)
hslhsl(235, 59%, 52%)
oklchoklch(0.48 0.203 272.1)
Closest name: Blurple (#5539cc)Relative luminance 0.1

Colors that go with #3c48cd

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 #3c48cd

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cdc13c

#3c91cd · #793ccd

#cd3c48 · #48cd3c

Split-complementary

Open in tool →

#cd793c · #91cd3c

#cd3c91 · #cdc13c · #3ccd79

Contrast

#3c48cd as textRatioAAAA largeAAAFix
Aaon white
7:1passpassfail
  • AAA: use #3845cc as the text (7.26:1)
Aaon black
3:1failpassfail
  • AA: use #616bd6 as the text (4.58:1)
  • AAA: use #8991e1 as the text (7.2:1)
  • AA: or shift the background to #d1d1d1 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c48cd as the background.

Brands using this color

Fonts for this mood

#3c48cd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c48cd
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 #3c48cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c48cd-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