Color

#13008f

#13008f
hex#13008f
rgbrgb(19, 0, 143)
hslhsl(248, 100%, 28%)
oklchoklch(0.301 0.199 268.9)
Closest name: darkblue (#00008b)Relative luminance 0.0212

Colors that go with #13008f

Crimson, Steel Blue and Cobalt 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 →

#7c8f00

#00348f · #5a008f

#8f1300 · #008f13

Split-complementary

Open in tool →

#8f5a00 · #348f00

#8f0034 · #7c8f00 · #008f5a

Contrast

#13008f as textRatioAAAA largeAAAFix
Aaon white
14.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.42:1failfailfail
  • AA: use #725cff as the text (4.69:1)
  • AAA: use #9585ff as the text (7.08:1)
  • AA: or shift the background to #8f8f8f (4.56:1)
  • AAA: or shift the background to #b3b3b3 (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 #13008f as the background.

Brands using this color

Fonts for this mood

#13008f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #13008f
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 #13008f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/13008f-a69cc4-dfac4e-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