Color

#263b4f

#263b4f
hex#263b4f
rgbrgb(38, 59, 79)
hslhsl(209, 35%, 23%)
oklchoklch(0.344 0.044 248)
Closest name: Capital Blue (#1a4157)Relative luminance 0.041

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4f3a26

#264f4e · #26274f

#4f263b · #3b4f26

Split-complementary

Open in tool →

#4f2627 · #4f4e26

#4e264f · #4f3a26 · #274f26

Contrast

#263b4f as textRatioAAAA largeAAAFix
Aaon white
11.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #4e79a2 as the text (4.58:1)
  • AAA: use #759abd as the text (7.11:1)
  • AA: or shift the background to #a3a3a3 (4.57:1)
  • AAA: or shift the background to #cccccc (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263b4f 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

#263b4f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263b4f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #263b4f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263b4f-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