Color

#2b77b1

#2b77b1
hex#2b77b1
rgbrgb(43, 119, 177)
hslhsl(206, 61%, 43%)
oklchoklch(0.551 0.116 245.5)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1688

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b1652b

#2bb1a8 · #2b34b1

#b12b77 · #77b12b

Split-complementary

Open in tool →

#b12b34 · #b1a82b

#a82bb1 · #b1652b · #34b12b

Contrast

#2b77b1 as textRatioAAAA largeAAAFix
Aaon white
4.8:1passpassfail
  • AAA: use #215b87 as the text (7.21:1)
Aaon black
4.38:1failpassfail
  • AA: use #2c79b5 as the text (4.51:1)
  • AAA: use #539dd5 as the text (7.15:1)
  • AA: or shift the background to #fafafa (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b77b1 as the background.

Brands using this color

Fonts for this mood

#2b77b1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b77b1
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 #2b77b1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b77b1-9caec4-df4e56-1f212d-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