Color

#263c40

#263c40
hex#263c40
rgbrgb(38, 60, 64)
hslhsl(189, 25%, 20%)
oklchoklch(0.34 0.029 210.1)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0401

Tints & shades

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

Harmonies

Complementary

Open in tool →

#402a26

#264037 · #262f40

#40263c · #3c4026

Split-complementary

Open in tool →

#40262f · #403726

#372640 · #402a26 · #2f4026

Contrast

#263c40 as textRatioAAAA largeAAAFix
Aaon white
11.65:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #507e86 as the text (4.67:1)
  • AAA: use #6c9ea7 as the text (7.09:1)
  • AA: or shift the background to #a1a1a1 (4.51:1)
  • AAA: or shift the background to #c9c9c9 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263c40 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

#263c40 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263c40
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 #263c40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263c40-a2b7be-df4e7e-1f252d-e9f1ee?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