Color

#133177

#133177
hex#133177
rgbrgb(19, 49, 119)
hslhsl(222, 72%, 27%)
oklchoklch(0.338 0.125 263.6)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0367

Colors that go with #133177

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 →

#765913

#136376 · #271376

#761331 · #317613

Split-complementary

Open in tool →

#762713 · #637613

#761363 · #765913 · #137627

Contrast

#133177 as textRatioAAAA largeAAAFix
Aaon white
12.11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #3e6ee0 as the text (4.51:1)
  • AAA: use #7396e8 as the text (7.26:1)
  • AA: or shift the background to #9e9e9e (4.52:1)
  • AAA: or shift the background to #c7c7c7 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #133177 as the background.

Brands using this color

Fonts for this mood

#133177 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #133177
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 #133177 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/133177-9ca3c4-df6e4e-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