Color

#18263f

#18263f
hex#18263f
rgbrgb(24, 38, 63)
hslhsl(218, 45%, 17%)
oklchoklch(0.27 0.051 261.4)
Closest name: Eternal Darkness (#1c2841)Relative luminance 0.0194

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f3118

#183a3f · #1d183f

#3f1826 · #263f18

Split-complementary

Open in tool →

#3f1d18 · #3a3f18

#3f183a · #3f3118 · #183f1d

Contrast

#18263f as textRatioAAAA largeAAAFix
Aaon white
15.13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.39:1failfailfail
  • AA: use #4e76bc as the text (4.64:1)
  • AAA: use #7a98cd as the text (7.2:1)
  • AA: or shift the background to #8f8f8f (4.68:1)
  • AAA: or shift the background to #b3b3b3 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18263f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#18263f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18263f
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 #18263f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18263f-9ca6c4-df644e-201f2d-e9f0f1?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