Color

#013188

#013188
hex#013188
rgbrgb(1, 49, 136)
hslhsl(219, 99%, 27%)
oklchoklch(0.35 0.153 261.4)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0398

Colors that go with #013188

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 →

#895901

#017589 · #150189

#890130 · #308901

Split-complementary

Open in tool →

#891501 · #758901

#890175 · #895901 · #018915

Contrast

#013188 as textRatioAAAA largeAAAFix
Aaon white
11.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #1b6afe as the text (4.54:1)
  • AAA: use #5d95fe as the text (7.2:1)
  • AA: or shift the background to #a1a1a1 (4.53:1)
  • AAA: or shift the background to #c9c9c9 (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 #013188 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

#013188 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #013188
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 #013188 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/013188-9ca5c4-df664e-211f2d-e9f0f1?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