Color

#2b577d

#2b577d
hex#2b577d
rgbrgb(43, 87, 125)
hslhsl(208, 49%, 33%)
oklchoklch(0.443 0.08 246.9)
Closest name: Beyond the Sea (#005784)Relative luminance 0.0881

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d512b

#2b7d7b · #2b2e7d

#7d2b57 · #577d2b

Split-complementary

Open in tool →

#7d2b2e · #7d7b2b

#7b2b7d · #7d512b · #2e7d2b

Contrast

#2b577d as textRatioAAAA largeAAAFix
Aaon white
7.6:1passpasspassPasses AAA — no fix needed.
Aaon black
2.76:1failfailfail
  • AA: use #3c79af as the text (4.55:1)
  • AAA: use #639aca as the text (7.01:1)
  • AA: or shift the background to #c9c9c9 (4.59:1)
  • AAA: or shift the background to #f7f7f7 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b577d 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

#2b577d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b577d
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 #2b577d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b577d-9cadc4-df4e51-1f212d-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