Color

#133f95

#133f95
hex#133f95
rgbrgb(19, 63, 149)
hslhsl(220, 77%, 33%)
oklchoklch(0.395 0.15 261.9)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0586

Colors that go with #133f95

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.

Real palettes that use #133f95

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#956a13

#137f95 · #291395

#95133f · #3f9513

Split-complementary

Open in tool →

#952913 · #7f9513

#95137f · #956a13 · #139529

Contrast

#133f95 as textRatioAAAA largeAAAFix
Aaon white
9.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.17:1failfailfail
  • AA: use #346fe5 as the text (4.55:1)
  • AAA: use #6a95ec as the text (7.12:1)
  • AA: or shift the background to #b3b3b3 (4.61:1)
  • AAA: or shift the background to #dedede (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #133f95 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#133f95 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #133f95
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 #133f95 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/133f95-9ca5c4-df694e-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