Color

#183554

#183554
hex#183554
rgbrgb(24, 53, 84)
hslhsl(211, 56%, 21%)
oklchoklch(0.323 0.066 251.9)
Closest name: Beyond the Stars (#0a3251)Relative luminance 0.0338

Tints & shades

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

Harmonies

Complementary

Open in tool →

#543718

#185354 · #191854

#541835 · #355418

Split-complementary

Open in tool →

#541918 · #535418

#541853 · #543718 · #185419

Contrast

#183554 as textRatioAAAA largeAAAFix
Aaon white
12.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #3678bf as the text (4.6:1)
  • AAA: use #649ad3 as the text (7.1:1)
  • AA: or shift the background to #9c9c9c (4.56:1)
  • AAA: or shift the background to #c2c2c2 (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 #183554 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

#183554 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #183554
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 #183554 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/183554-9cabc4-df534e-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