Color

#3544bb

#3544bb
hex#3544bb
rgbrgb(53, 68, 187)
hslhsl(233, 56%, 47%)
oklchoklch(0.453 0.186 271.2)
Closest name: Denim (#2243b6)Relative luminance 0.0848

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bbab35

#3588bb · #6835bb

#bb3544 · #44bb35

Split-complementary

Open in tool →

#bb6835 · #88bb35

#bb3588 · #bbab35 · #35bb68

Contrast

#3544bb as textRatioAAAA largeAAAFix
Aaon white
7.79:1passpasspassPasses AAA — no fix needed.
Aaon black
2.7:1failfailfail
  • AA: use #606dd2 as the text (4.62:1)
  • AAA: use #8892dd as the text (7.2:1)
  • AA: or shift the background to #c7c7c7 (4.61:1)
  • AAA: or shift the background to #f5f5f5 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3544bb 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

#3544bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3544bb
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 #3544bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3544bb-9c9cc4-df884e-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