Color

#180b60

#180b60
hex#180b60
rgbrgb(24, 11, 96)
hslhsl(249, 79%, 21%)
oklchoklch(0.249 0.136 276.8)
Closest name: Dying Storm Blue (#111166)Relative luminance 0.0128

Tints & shades

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

Harmonies

Complementary

Open in tool →

#53600b

#0b2960 · #420b60

#60180b · #0b6018

Split-complementary

Open in tool →

#60420b · #29600b

#600b29 · #53600b · #0b6042

Contrast

#180b60 as textRatioAAAA largeAAAFix
Aaon white
16.72:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #745fec as the text (4.59:1)
  • AAA: use #9888f1 as the text (7.13:1)
  • AA: or shift the background to #858585 (4.53:1)
  • AAA: or shift the background to #a8a8a8 (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 #180b60 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

#180b60 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #180b60
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 #180b60 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/180b60-a79cc4-dfae4e-271f2d-e9ecf1?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