Color

#2f4856

#2f4856
hex#2f4856
rgbrgb(47, 72, 86)
hslhsl(202, 29%, 26%)
oklchoklch(0.387 0.039 233.7)
Closest name: Charcoal (#36454f)Relative luminance 0.0591

Colors that go with #2f4856

Steel Blue, Teal and Sienna 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 →

#563d2f

#2f5650 · #2f3456

#562f47 · #47562f

Split-complementary

Open in tool →

#562f34 · #56502f

#502f56 · #563d2f · #34562f

Contrast

#2f4856 as textRatioAAAA largeAAAFix
Aaon white
9.62:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #517c94 as the text (4.66:1)
  • AAA: use #759cb3 as the text (7.16:1)
  • AA: or shift the background to #b3b3b3 (4.59:1)
  • AAA: or shift the background to #dedede (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f4856 as the background.

Brands using this color

Fonts for this mood

#2f4856 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f4856
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 #2f4856 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f4856-9cb1c4-df4e5f-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