Color

#3744cd

#3744cd
hex#3744cd
rgbrgb(55, 68, 205)
hslhsl(235, 60%, 51%)
oklchoklch(0.471 0.208 271.3)
Closest name: Denim (#2243b6)Relative luminance 0.0935

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cdc137

#378fcd · #7637cd

#cd3744 · #44cd37

Split-complementary

Open in tool →

#cd7637 · #8fcd37

#cd378f · #cdc137 · #37cd76

Contrast

#3744cd as textRatioAAAA largeAAAFix
Aaon white
7.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #606ad7 as the text (4.54:1)
  • AAA: use #8990e1 as the text (7.14:1)
  • AA: or shift the background to #cccccc (4.55:1)
  • AAA: or shift the background to #fafafa (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 #3744cd 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

#3744cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3744cd
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 #3744cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3744cd-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