Color

#3704dc

#3704dc
hex#3704dc
rgbrgb(55, 4, 220)
hslhsl(254, 96%, 44%)
oklchoklch(0.426 0.268 274.2)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0607

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aadc04

#043edc · #a204dc

#dc3704 · #04dc37

Split-complementary

Open in tool →

#dca204 · #3edc04

#dc043e · #aadc04 · #04dca2

Contrast

#3704dc as textRatioAAAA largeAAAFix
Aaon white
9.49:1passpasspassPasses AAA — no fix needed.
Aaon black
2.21:1failfailfail
  • AA: use #7c55fc as the text (4.56:1)
  • AAA: use #9f82fc as the text (7.07:1)
  • AA: or shift the background to #b3b3b3 (4.53:1)
  • AAA: or shift the background to #dedede (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3704dc 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

#3704dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3704dc
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 #3704dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3704dc-aa9cc4-dfbb4e-291f2d-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