Color

#130a8a

#130a8a
hex#130a8a
rgbrgb(19, 10, 138)
hslhsl(244, 86%, 29%)
oklchoklch(0.301 0.189 269.1)
Closest name: darkblue (#00008b)Relative luminance 0.0219

Colors that go with #130a8a

Crimson, Steel 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 →

#818a0a

#0a418a · #520a8a

#8a130a · #0a8a13

Split-complementary

Open in tool →

#8a520a · #418a0a

#8a0a41 · #818a0a · #0a8a52

Contrast

#130a8a as textRatioAAAA largeAAAFix
Aaon white
14.6:1passpasspassPasses AAA — no fix needed.
Aaon black
1.44:1failfailfail
  • AA: use #6c62f3 as the text (4.68:1)
  • AAA: use #9088f6 as the text (7.04:1)
  • AA: or shift the background to #8f8f8f (4.52:1)
  • AAA: or shift the background to #b5b5b5 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #130a8a as the background.

Brands using this color

Fonts for this mood

#130a8a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #130a8a
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 #130a8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/130a8a-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