Color

#25243d

#25243d
hex#25243d
rgbrgb(37, 36, 61)
hslhsl(242, 26%, 19%)
oklchoklch(0.274 0.046 284.8)
Closest name: Midnight Express (#21263a)Relative luminance 0.0199

Colors that go with #25243d

Charcoal, Dark Olive Green and Sea Green 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 →

#3c3d24

#24303d · #31243d

#3d2524 · #243d25

Split-complementary

Open in tool →

#3d3124 · #303d24

#3d2430 · #3c3d24 · #243d31

Contrast

#25243d as textRatioAAAA largeAAAFix
Aaon white
15.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #7472ac as the text (4.75:1)
  • AAA: use #9392bf as the text (7.1:1)
  • AA: or shift the background to #8f8f8f (4.64:1)
  • AAA: or shift the background to #b3b3b3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #25243d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#25243d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #25243d
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 #25243d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/25243d-a29cc4-df9e4e-261f2d-e9edf1?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