Color

#2b4b5f

#2b4b5f
hex#2b4b5f
rgbrgb(43, 75, 95)
hslhsl(203, 38%, 27%)
oklchoklch(0.397 0.051 237.4)
Closest name: Bluedgeons (#324c64)Relative luminance 0.0637

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5f3f2b

#2b5f59 · #2b315f

#5f2b4b · #4b5f2b

Split-complementary

Open in tool →

#5f2b31 · #5f592b

#592b5f · #5f3f2b · #315f2b

Contrast

#2b4b5f as textRatioAAAA largeAAAFix
Aaon white
9.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #467a9b as the text (4.52:1)
  • AAA: use #6b9dbd as the text (7.18:1)
  • AA: or shift the background to #b5b5b5 (4.5:1)
  • AAA: or shift the background to #e3e3e3 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b4b5f 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

#2b4b5f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b4b5f
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 #2b4b5f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b4b5f-9cb0c4-df4e5d-1f222d-e9f1f0?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