Color

#181d35

#181d35
hex#181d35
rgbrgb(24, 29, 53)
hslhsl(230, 38%, 15%)
oklchoklch(0.239 0.047 273.5)
Closest name: Nightwalker (#161d3b)Relative luminance 0.0133

Tints & shades

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

Harmonies

Complementary

Open in tool →

#353018

#182b35 · #211835

#35181d · #1d3518

Split-complementary

Open in tool →

#352118 · #2b3518

#35182b · #353018 · #183521

Contrast

#181d35 as textRatioAAAA largeAAAFix
Aaon white
16.59:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #6472b9 as the text (4.65:1)
  • AAA: use #8b96cb as the text (7.32:1)
  • AA: or shift the background to #878787 (4.62:1)
  • AAA: or shift the background to #ababab (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 #181d35 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#181d35 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #181d35
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 #181d35 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/181d35-9c9ec4-df814e-231f2d-e9eef1?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