Color

#1138ac

#1138ac
hex#1138ac
rgbrgb(17, 56, 172)
hslhsl(225, 82%, 37%)
oklchoklch(0.403 0.189 264.5)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0593

Colors that go with #1138ac

Charcoal, Sea Green 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 →

#ac8511

#1185ac · #3811ac

#ac1138 · #38ac11

Split-complementary

Open in tool →

#ac3811 · #85ac11

#ac1185 · #ac8511 · #11ac38

Contrast

#1138ac as textRatioAAAA largeAAAFix
Aaon white
9.61:1passpasspassPasses AAA — no fix needed.
Aaon black
2.19:1failfailfail
  • AA: use #416cec as the text (4.58:1)
  • AAA: use #7493f1 as the text (7.19:1)
  • AA: or shift the background to #b3b3b3 (4.58:1)
  • AAA: or shift the background to #dedede (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1138ac as the background.

Brands using this color

Fonts for this mood

#1138ac reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1138ac
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 #1138ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1138ac-9ca1c4-df754e-221f2d-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