Color

#263f50

#263f50
hex#263f50
rgbrgb(38, 63, 80)
hslhsl(204, 36%, 23%)
oklchoklch(0.355 0.043 239.3)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0455

Colors that go with #263f50

Dark Olive Green, Sienna 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.

Real palettes that use #263f50

Tints & shades

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

Harmonies

Complementary

Open in tool →

#503626

#26504c · #262a50

#50263f · #3f5026

Split-complementary

Open in tool →

#50262a · #504c26

#4c2650 · #503626 · #2a5026

Contrast

#263f50 as textRatioAAAA largeAAAFix
Aaon white
11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #497b9c as the text (4.6:1)
  • AAA: use #6d9cba as the text (7.11:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (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 #263f50 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

#263f50 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263f50
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 #263f50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263f50-9cafc4-df4e5a-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