Color

#3504e7

#3504e7
hex#3504e7
rgbrgb(53, 4, 231)
hslhsl(253, 97%, 46%)
oklchoklch(0.439 0.279 272.7)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0661

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b6e704

#0444e7 · #a704e7

#e73504 · #04e735

Split-complementary

Open in tool →

#e7a704 · #44e704

#e70444 · #b6e704 · #04e7a7

Contrast

#3504e7 as textRatioAAAA largeAAAFix
Aaon white
9.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.32:1failfailfail
  • AA: use #7d59fc as the text (4.71:1)
  • AAA: use #a086fd as the text (7.32:1)
  • AA: or shift the background to #b8b8b8 (4.56:1)
  • AAA: or shift the background to #e3e3e3 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3504e7 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

#3504e7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3504e7
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 #3504e7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3504e7-a99cc4-dfb84e-281f2d-e9ebf1?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