Color

#3340cc

#3340cc
hex#3340cc
rgbrgb(51, 64, 204)
hslhsl(235, 60%, 50%)
oklchoklch(0.461 0.213 270.8)
Closest name: Denim (#2243b6)Relative luminance 0.0873

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ccbf33

#338ccc · #7333cc

#cc3340 · #40cc33

Split-complementary

Open in tool →

#cc7333 · #8ccc33

#cc338c · #ccbf33 · #33cc73

Contrast

#3340cc as textRatioAAAA largeAAAFix
Aaon white
7.65:1passpasspassPasses AAA — no fix needed.
Aaon black
2.75:1failfailfail
  • AA: use #606ad7 as the text (4.54:1)
  • AAA: use #8990e1 as the text (7.14:1)
  • AA: or shift the background to #c7c7c7 (4.52:1)
  • AAA: or shift the background to #f5f5f5 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3340cc 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

#3340cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3340cc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3340cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3340cc-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