Color

#013d9d

#013d9d
hex#013d9d
rgbrgb(1, 61, 157)
hslhsl(217, 99%, 31%)
oklchoklch(0.395 0.166 260.7)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0578

Colors that go with #013d9d

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 →

#9d6101

#018b9d · #13019d

#9d013d · #3d9d01

Split-complementary

Open in tool →

#9d1301 · #8b9d01

#9d018b · #9d6101 · #019d13

Contrast

#013d9d as textRatioAAAA largeAAAFix
Aaon white
9.74:1passpasspassPasses AAA — no fix needed.
Aaon black
2.16:1failfailfail
  • AA: use #106bfe as the text (4.56:1)
  • AAA: use #5294fe as the text (7.03:1)
  • AA: or shift the background to #b3b3b3 (4.65:1)
  • AAA: or shift the background to #dbdbdb (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #013d9d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#013d9d reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #013d9d
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 #013d9d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/013d9d-9ca7c4-df624e-201f2d-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