Color

#2f535b

#2f535b
hex#2f535b
rgbrgb(47, 83, 91)
hslhsl(191, 32%, 27%)
oklchoklch(0.418 0.043 213.5)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0755

Colors that go with #2f535b

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.

Real palettes that use #2f535b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b372f

#2f5b4d · #2f3d5b

#5b2f53 · #535b2f

Split-complementary

Open in tool →

#5b2f3d · #5b4d2f

#4d2f5b · #5b372f · #3d5b2f

Contrast

#2f535b as textRatioAAAA largeAAAFix
Aaon white
8.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #477e8a as the text (4.62:1)
  • AAA: use #619fae as the text (7.08:1)
  • AA: or shift the background to #bfbfbf (4.55:1)
  • AAA: or shift the background to #ebebeb (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f535b 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

#2f535b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f535b
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 #2f535b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f535b-a2b6be-df4e7a-1f252d-e9f1ef?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