Color

#3940c6

#3940c6
hex#3940c6
rgbrgb(57, 64, 198)
hslhsl(237, 55%, 50%)
oklchoklch(0.459 0.204 272.8)
Closest name: Denim (#2243b6)Relative luminance 0.0861

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c6bf39

#3987c6 · #7839c6

#c63940 · #40c639

Split-complementary

Open in tool →

#c67839 · #87c639

#c63987 · #c6bf39 · #39c678

Contrast

#3940c6 as textRatioAAAA largeAAAFix
Aaon white
7.71:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #656ad2 as the text (4.55:1)
  • AAA: use #8c90de as the text (7.16:1)
  • AA: or shift the background to #c7c7c7 (4.56:1)
  • AAA: or shift the background to #f5f5f5 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3940c6 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

#3940c6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3940c6
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 #3940c6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3940c6-9f9cc4-df924e-251f2d-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