Color

#3754e1

#3754e1
hex#3754e1
rgbrgb(55, 84, 225)
hslhsl(230, 74%, 55%)
oklchoklch(0.516 0.216 268.5)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1259

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e1c537

#37a9e1 · #7037e1

#e13754 · #54e137

Split-complementary

Open in tool →

#e17037 · #a9e137

#e137a9 · #e1c537 · #37e170

Contrast

#3754e1 as textRatioAAAA largeAAAFix
Aaon white
5.97:1passpassfail
  • AAA: use #2644df as the text (7.06:1)
Aaon black
3.52:1failpassfail
  • AA: use #526ae5 as the text (4.55:1)
  • AAA: use #7e91ec as the text (7.15:1)
  • AA: or shift the background to #e0e0e0 (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 #3754e1 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

#3754e1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3754e1
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 #3754e1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3754e1-9c9ec4-df814e-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