Color

#2b3b4a

#2b3b4a
hex#2b3b4a
rgbrgb(43, 59, 74)
hslhsl(209, 26%, 23%)
oklchoklch(0.345 0.034 247.2)
Closest name: Astral Nomad (#203943)Relative luminance 0.0414

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4a3a2b

#2b4a49 · #2b2c4a

#4a2b3b · #3b4a2b

Split-complementary

Open in tool →

#4a2b2c · #4a492b

#492b4a · #4a3a2b · #2c4a2b

Contrast

#2b3b4a as textRatioAAAA largeAAAFix
Aaon white
11.49:1passpasspassPasses AAA — no fix needed.
Aaon black
1.83:1failfailfail
  • AA: use #597997 as the text (4.61:1)
  • AAA: use #7e9ab4 as the text (7.17:1)
  • AA: or shift the background to #a3a3a3 (4.56:1)
  • AAA: or shift the background to #cccccc (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b3b4a 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

#2b3b4a reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b3b4a
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 #2b3b4a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b3b4a-9cacc4-df4e4e-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