Color

#131a76

#131a76
hex#131a76
rgbrgb(19, 26, 118)
hslhsl(236, 72%, 27%)
oklchoklch(0.293 0.152 269.4)
Closest name: midnightblue (#191970)Relative luminance 0.0219

Colors that go with #131a76

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 →

#767013

#134b76 · #3e1376

#76131a · #1a7613

Split-complementary

Open in tool →

#763e13 · #4b7613

#76134b · #767013 · #13763e

Contrast

#131a76 as textRatioAAAA largeAAAFix
Aaon white
14.61:1passpasspassPasses AAA — no fix needed.
Aaon black
1.44:1failfailfail
  • AA: use #616ae5 as the text (4.7:1)
  • AAA: use #898fec as the text (7.2:1)
  • AA: or shift the background to #8f8f8f (4.52:1)
  • AAA: or shift the background to #b5b5b5 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #131a76 as the background.

Brands using this color

Fonts for this mood

#131a76 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #131a76
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 #131a76 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/131a76-9e9cc4-df8f4e-241f2d-e9eef1?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