Color

#3576bb

#3576bb
hex#3576bb
rgbrgb(53, 118, 187)
hslhsl(211, 56%, 47%)
oklchoklch(0.557 0.126 252.2)
Closest name: Campanula (#3473b7)Relative luminance 0.173

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb7a35

#35b9bb · #3735bb

#bb3576 · #76bb35

Split-complementary

Open in tool →

#bb3735 · #b9bb35

#bb35b9 · #bb7a35 · #35bb37

Contrast

#3576bb as textRatioAAAA largeAAAFix
Aaon white
4.71:1passpassfail
  • AAA: use #285a8f as the text (7.12:1)
Aaon black
4.46:1failpassfail
  • AA: use #3678bf as the text (4.6:1)
  • AAA: use #649ad3 as the text (7.1:1)
  • AA: or shift the background to #fafafa (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3576bb as the background.

Brands using this color

Fonts for this mood

#3576bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3576bb
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 #3576bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3576bb-9cabc4-df534e-1f202d-e9f1f1?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