Color

#180daf

#180daf
hex#180daf
rgbrgb(24, 13, 175)
hslhsl(244, 86%, 37%)
oklchoklch(0.355 0.226 268.4)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0358

Colors that go with #180daf

Crimson, Blue and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a5af0d

#0d54af · #690daf

#af180d · #0daf18

Split-complementary

Open in tool →

#af690d · #54af0d

#af0d54 · #a5af0d · #0daf69

Contrast

#180daf as textRatioAAAA largeAAAFix
Aaon white
12.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #6c62f3 as the text (4.68:1)
  • AAA: use #9088f6 as the text (7.04:1)
  • AA: or shift the background to #9e9e9e (4.57:1)
  • AAA: or shift the background to #c4c4c4 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #180daf as the background.

Brands using this color

Fonts for this mood

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

mcpConnect your agent — build around #180daf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #180daf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/180daf-a39cc4-dfa24e-261f2d-e9edf1?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