Color

#13358b

#13358b
hex#13358b
rgbrgb(19, 53, 139)
hslhsl(223, 76%, 31%)
oklchoklch(0.365 0.149 264)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0455

Colors that go with #13358b

Charcoal, Steel Blue and 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 →

#8b6913

#13718b · #2d138b

#8b1335 · #358b13

Split-complementary

Open in tool →

#8b2d13 · #718b13

#8b1371 · #8b6913 · #138b2d

Contrast

#13358b as textRatioAAAA largeAAAFix
Aaon white
11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #3e6de5 as the text (4.52:1)
  • AAA: use #6f93eb as the text (7.05:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #13358b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#13358b reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #13358b
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 #13358b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/13358b-9ca3c4-df704e-211f2d-e9eff1?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