Color

#1813aa

#1813aa
hex#1813aa
rgbrgb(24, 19, 170)
hslhsl(242, 80%, 37%)
oklchoklch(0.353 0.218 268.5)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0356

Colors that go with #1813aa

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 →

#a5aa13

#1359aa · #6313aa

#aa1813 · #13aa18

Split-complementary

Open in tool →

#aa6313 · #59aa13

#aa1359 · #a5aa13 · #13aa63

Contrast

#1813aa as textRatioAAAA largeAAAFix
Aaon white
12.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.71:1failfailfail
  • AA: use #6863ee as the text (4.61:1)
  • AAA: use #908cf2 as the text (7.22:1)
  • AA: or shift the background to #9e9e9e (4.58:1)
  • AAA: or shift the background to #c4c4c4 (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 #1813aa 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

#1813aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1813aa
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 #1813aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1813aa-a29cc4-df9e4e-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