Color

#2b4091

#2b4091
hex#2b4091
rgbrgb(43, 64, 145)
hslhsl(228, 54%, 37%)
oklchoklch(0.404 0.136 268.6)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0622

Tints & shades

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

Harmonies

Complementary

Open in tool →

#917d2b

#2b7391 · #4a2b91

#912b40 · #40912b

Split-complementary

Open in tool →

#914a2b · #73912b

#912b73 · #917d2b · #2b914a

Contrast

#2b4091 as textRatioAAAA largeAAAFix
Aaon white
9.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #566ecd as the text (4.51:1)
  • AAA: use #8193d9 as the text (7.11:1)
  • AA: or shift the background to #b5b5b5 (4.56:1)
  • AAA: or shift the background to #e0e0e0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b4091 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

#2b4091 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b4091
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 #2b4091 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b4091-9c9fc4-df7c4e-231f2d-e9eff1?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