Color

#263240

#263240
hex#263240
rgbrgb(38, 50, 64)
hslhsl(212, 25%, 20%)
oklchoklch(0.312 0.03 252.6)
Closest name: Blue Whale (#1e3442)Relative luminance 0.0306

Tints & shades

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

Harmonies

Complementary

Open in tool →

#403426

#263f40 · #272640

#402632 · #324026

Split-complementary

Open in tool →

#402726 · #3f4026

#40263f · #403426 · #264027

Contrast

#263240 as textRatioAAAA largeAAAFix
Aaon white
13.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #5c7899 as the text (4.6:1)
  • AAA: use #839ab4 as the text (7.25:1)
  • AA: or shift the background to #999999 (4.57:1)
  • AAA: or shift the background to #bfbfbf (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263240 as the background.

Brands using this color

Fonts for this mood

#263240 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263240
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 #263240 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263240-9caac4-df564e-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