Color

#2f4656

#2f4656
hex#2f4656
rgbrgb(47, 70, 86)
hslhsl(205, 29%, 26%)
oklchoklch(0.382 0.04 239.5)
Closest name: Charcoal (#36454f)Relative luminance 0.0566

Colors that go with #2f4656

Sienna, Blue and Blush Pink 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 →

#563f2f

#2f5652 · #2f3256

#562f46 · #46562f

Split-complementary

Open in tool →

#562f32 · #56522f

#522f56 · #563f2f · #32562f

Contrast

#2f4656 as textRatioAAAA largeAAAFix
Aaon white
9.85:1passpasspassPasses AAA — no fix needed.
Aaon black
2.13:1failfailfail
  • AA: use #537b97 as the text (4.65:1)
  • AAA: use #789cb5 as the text (7.22:1)
  • AA: or shift the background to #b0b0b0 (4.54:1)
  • AAA: or shift the background to #dbdbdb (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f4656 as the background.

Brands using this color

Fonts for this mood

#2f4656 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f4656
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 #2f4656 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f4656-9cafc4-df4e58-1f212d-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