Color

#2b405f

#2b405f
hex#2b405f
rgbrgb(43, 64, 95)
hslhsl(216, 38%, 27%)
oklchoklch(0.369 0.06 258)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0501

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5f4a2b

#2b5a5f · #302b5f

#5f2b40 · #405f2b

Split-complementary

Open in tool →

#5f302b · #5a5f2b

#5f2b5a · #5f4a2b · #2b5f30

Contrast

#2b405f as textRatioAAAA largeAAAFix
Aaon white
10.49:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #4f76b0 as the text (4.55:1)
  • AAA: use #7997c3 as the text (7.03:1)
  • AA: or shift the background to #ababab (4.57:1)
  • AAA: or shift the background to #d4d4d4 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b405f as the background.

Brands using this color

Fonts for this mood

#2b405f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b405f
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 #2b405f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b405f-9ca7c4-df5f4e-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