Color

#181baa

#181baa
hex#181baa
rgbrgb(24, 27, 170)
hslhsl(239, 75%, 38%)
oklchoklch(0.36 0.213 268.3)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0388

Colors that go with #181baa

Charcoal, Crimson and Steel Blue 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 →

#aaa718

#1863aa · #5e18aa

#aa181b · #1baa18

Split-complementary

Open in tool →

#aa5e18 · #63aa18

#aa1863 · #aaa718 · #18aa5e

Contrast

#181baa as textRatioAAAA largeAAAFix
Aaon white
11.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #6365e9 as the text (4.57:1)
  • AAA: use #8b8dee as the text (7.14:1)
  • AA: or shift the background to #a1a1a1 (4.58:1)
  • AAA: or shift the background to #c9c9c9 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #181baa 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

#181baa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/181baa-a09cc4-df964e-251f2d-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