Color

#263b50

#263b50
hex#263b50
rgbrgb(38, 59, 80)
hslhsl(210, 36%, 23%)
oklchoklch(0.345 0.046 249.3)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0412

Colors that go with #263b50

Dark Olive Green, 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 →

#503b26

#265050 · #262650

#50263b · #3b5026

Split-complementary

Open in tool →

#502626 · #505026

#502650 · #503b26 · #265026

Contrast

#263b50 as textRatioAAAA largeAAAFix
Aaon white
11.51:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #4d78a3 as the text (4.53:1)
  • AAA: use #7499be as the text (7.04:1)
  • AA: or shift the background to #a3a3a3 (4.56:1)
  • AAA: or shift the background to #cccccc (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263b50 as the background.

Brands using this color

Fonts for this mood

#263b50 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263b50
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 #263b50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263b50-9cabc4-df514e-1f202d-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