Color

#2b3e4a

#2b3e4a
hex#2b3e4a
rgbrgb(43, 62, 74)
hslhsl(203, 26%, 23%)
oklchoklch(0.353 0.032 236.6)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0445

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4a372b

#2b4a46 · #2b2f4a

#4a2b3e · #3e4a2b

Split-complementary

Open in tool →

#4a2b2f · #4a462b

#462b4a · #4a372b · #2f4a2b

Contrast

#2b3e4a as textRatioAAAA largeAAAFix
Aaon white
11.11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #557a91 as the text (4.58:1)
  • AAA: use #789ab0 as the text (7.05:1)
  • AA: or shift the background to #a6a6a6 (4.56:1)
  • AAA: or shift the background to #cfcfcf (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b3e4a 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

#2b3e4a reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b3e4a
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 #2b3e4a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b3e4a-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