Color

#3941ac

#3941ac
hex#3941ac
rgbrgb(57, 65, 172)
hslhsl(236, 50%, 45%)
oklchoklch(0.437 0.168 273.8)
Closest name: Denim (#2243b6)Relative luminance 0.0763

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aca439

#397aac · #6b39ac

#ac3941 · #41ac39

Split-complementary

Open in tool →

#ac6b39 · #7aac39

#ac397a · #aca439 · #39ac6b

Contrast

#3941ac as textRatioAAAA largeAAAFix
Aaon white
8.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.53:1failfailfail
  • AA: use #666dcc as the text (4.62:1)
  • AAA: use #8c91d9 as the text (7.17:1)
  • AA: or shift the background to #bfbfbf (4.52:1)
  • AAA: or shift the background to #ededed (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3941ac 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

#3941ac reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3941ac
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 #3941ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3941ac-9e9cc4-df8f4e-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