Color

#2b4e88

#2b4e88
hex#2b4e88
rgbrgb(43, 78, 136)
hslhsl(217, 52%, 35%)
oklchoklch(0.428 0.105 259.9)
Closest name: Assassin (#2d4f83)Relative luminance 0.0774

Tints & shades

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

Harmonies

Complementary

Open in tool →

#88642b

#2b7d88 · #362b88

#882b4e · #4e882b

Split-complementary

Open in tool →

#88362b · #7d882b

#882b7d · #88642b · #2b8836

Contrast

#2b4e88 as textRatioAAAA largeAAAFix
Aaon white
8.24:1passpasspassPasses AAA — no fix needed.
Aaon black
2.55:1failfailfail
  • AA: use #4576c4 as the text (4.64:1)
  • AAA: use #7398d3 as the text (7.16:1)
  • AA: or shift the background to #c2c2c2 (4.63:1)
  • AAA: or shift the background to #ededed (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b4e88 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

#2b4e88 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b4e88
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 #2b4e88 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b4e88-9ca7c4-df624e-201f2d-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