Color

#2b5fbf

#2b5fbf
hex#2b5fbf
rgbrgb(43, 95, 191)
hslhsl(219, 63%, 46%)
oklchoklch(0.505 0.161 261.3)
Closest name: God of Rain (#4466cc)Relative luminance 0.1246

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf8b2b

#2ba9bf · #422bbf

#bf2b5f · #5fbf2b

Split-complementary

Open in tool →

#bf422b · #a9bf2b

#bf2ba9 · #bf8b2b · #2bbf42

Contrast

#2b5fbf as textRatioAAAA largeAAAFix
Aaon white
6.01:1passpassfail
  • AAA: use #2755aa as the text (7.08:1)
Aaon black
3.49:1failpassfail
  • AA: use #4074d4 as the text (4.67:1)
  • AAA: use #6e95de as the text (7.02:1)
  • AA: or shift the background to #e0e0e0 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b5fbf as the background.

Brands using this color

Fonts for this mood

#2b5fbf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b5fbf
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 #2b5fbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b5fbf-9ca5c4-df664e-211f2d-e9f0f1?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