Color

#3754fb

#3754fb
hex#3754fb
rgbrgb(55, 84, 251)
hslhsl(231, 96%, 60%)
oklchoklch(0.54 0.248 268.3)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1412

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbde37

#37b6fb · #7c37fb

#fb3754 · #54fb37

Split-complementary

Open in tool →

#fb7c37 · #b6fb37

#fb37b6 · #fbde37 · #37fb7c

Contrast

#3754fb as textRatioAAAA largeAAAFix
Aaon white
5.49:1passpassfail
  • AAA: use #1437fa as the text (7.1:1)
Aaon black
3.82:1failpassfail
  • AA: use #4b66fb as the text (4.59:1)
  • AAA: use #7d90fc as the text (7.27:1)
  • AA: or shift the background to #ebebeb (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3754fb 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

#3754fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3754fb
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 #3754fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3754fb-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