Color

#133e58

#133e58
hex#133e58
rgbrgb(19, 62, 88)
hslhsl(203, 64%, 21%)
oklchoklch(0.348 0.065 239.3)
Closest name: Maniac Mansion (#004058)Relative luminance 0.0429

Colors that go with #133e58

Royal Blue, Teal and Sienna 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 →

#582e13

#135850 · #131b58

#58133e · #3e5813

Split-complementary

Open in tool →

#58131b · #585013

#501358 · #582e13 · #1b5813

Contrast

#133e58 as textRatioAAAA largeAAAFix
Aaon white
11.3:1passpasspassPasses AAA — no fix needed.
Aaon black
1.86:1failfailfail
  • AA: use #277bb0 as the text (4.55:1)
  • AAA: use #439dd6 as the text (7.03:1)
  • AA: or shift the background to #a6a6a6 (4.64:1)
  • AAA: or shift the background to #cccccc (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 #133e58 as the background.

Brands using this color

Fonts for this mood

#133e58 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #133e58
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 #133e58 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/133e58-9cb0c4-df4e5d-1f222d-e9f1f0?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