Color

#25435f

#25435f
hex#25435f
rgbrgb(37, 67, 95)
hslhsl(209, 44%, 26%)
oklchoklch(0.373 0.06 248.2)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0523

Colors that go with #25435f

Teal, Sienna and Blue 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 →

#5f4125

#255f5e · #25265f

#5f2543 · #435f25

Split-complementary

Open in tool →

#5f2526 · #5f5e25

#5e255f · #5f4125 · #265f25

Contrast

#25435f as textRatioAAAA largeAAAFix
Aaon white
10.26:1passpasspassPasses AAA — no fix needed.
Aaon black
2.05:1failfailfail
  • AA: use #437aad as the text (4.63:1)
  • AAA: use #6c9ac6 as the text (7.08:1)
  • AA: or shift the background to #adadad (4.57:1)
  • AAA: or shift the background to #d6d6d6 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #25435f as the background.

Brands using this color

Fonts for this mood

#25435f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #25435f
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 #25435f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/25435f-9cacc4-df4e4e-1f212d-e9f1f1?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