Color

#374ecd

#374ecd
hex#374ecd
rgbrgb(55, 78, 205)
hslhsl(231, 60%, 51%)
oklchoklch(0.488 0.197 269.6)
Closest name: Denim (#2243b6)Relative luminance 0.1067

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cdb737

#3799cd · #6c37cd

#cd374e · #4ecd37

Split-complementary

Open in tool →

#cd6c37 · #99cd37

#cd3799 · #cdb737 · #37cd6c

Contrast

#374ecd as textRatioAAAA largeAAAFix
Aaon white
6.7:1passpassfail
  • AAA: use #334acc as the text (7.02:1)
Aaon black
3.13:1failpassfail
  • AA: use #5c6ed6 as the text (4.66:1)
  • AAA: use #8592e0 as the text (7.19:1)
  • AA: or shift the background to #d4d4d4 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #374ecd 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

#374ecd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #374ecd
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 #374ecd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/374ecd-9c9ec4-df834e-231f2d-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