Color

#263b45

#263b45
hex#263b45
rgbrgb(38, 59, 69)
hslhsl(199, 29%, 21%)
oklchoklch(0.339 0.032 229.3)
Closest name: Astral Nomad (#203943)Relative luminance 0.0397

Colors that go with #263b45

Dark Olive Green, Sienna and Steel 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 →

#453026

#26453f · #262c45

#45263b · #3b4526

Split-complementary

Open in tool →

#45262c · #453f26

#3f2645 · #453026 · #2c4526

Contrast

#263b45 as textRatioAAAA largeAAAFix
Aaon white
11.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #507c91 as the text (4.63:1)
  • AAA: use #729db1 as the text (7.17:1)
  • AA: or shift the background to #a1a1a1 (4.53:1)
  • AAA: or shift the background to #c9c9c9 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263b45 as the background.

Brands using this color

Fonts for this mood

#263b45 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263b45
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 #263b45 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263b45-9cb3c4-df4e66-1f232d-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