Color

#2b414f

#2b414f
hex#2b414f
rgbrgb(43, 65, 79)
hslhsl(203, 30%, 24%)
oklchoklch(0.363 0.037 237.1)
Closest name: Charcoal (#36454f)Relative luminance 0.0486

Colors that go with #2b414f

Dark Olive Green, Steel Blue and Teal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#50392b

#2b504b · #2b2f50

#502b41 · #41502b

Split-complementary

Open in tool →

#502b2f · #504b2b

#4b2b50 · #50392b · #2f502b

Contrast

#2b414f as textRatioAAAA largeAAAFix
Aaon white
10.65:1passpasspassPasses AAA — no fix needed.
Aaon black
1.97:1failfailfail
  • AA: use #507b95 as the text (4.61:1)
  • AAA: use #749bb4 as the text (7.09:1)
  • AA: or shift the background to #ababab (4.64:1)
  • AAA: or shift the background to #d4d4d4 (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 #2b414f as the background.

Brands using this color

Fonts for this mood

#2b414f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b414f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #2b414f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b414f-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