Color

#3549fd

#3549fd
hex#3549fd
rgbrgb(53, 73, 253)
hslhsl(234, 98%, 60%)
oklchoklch(0.524 0.262 269)
Closest name: C64 Blue (#003aff)Relative luminance 0.1261

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fde935

#35adfd · #8535fd

#fd3549 · #49fd35

Split-complementary

Open in tool →

#fd8535 · #adfd35

#fd35ad · #fde935 · #35fd85

Contrast

#3549fd as textRatioAAAA largeAAAFix
Aaon white
5.96:1passpassfail
  • AAA: use #1c32fd as the text (7.18:1)
Aaon black
3.52:1failpassfail
  • AA: use #5364fd as the text (4.61:1)
  • AAA: use #818dfe as the text (7.17:1)
  • 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 #3549fd 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

#3549fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3549fd
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 #3549fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3549fd-9d9cc4-df8a4e-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