Color

#09319f

#09319f
hex#09319f
rgbrgb(9, 49, 159)
hslhsl(224, 89%, 33%)
oklchoklch(0.375 0.182 263.9)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0476

Colors that go with #09319f

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9f7709

#097c9f · #2c099f

#9f0931 · #319f09

Split-complementary

Open in tool →

#9f2c09 · #7c9f09

#9f097c · #9f7709 · #099f2c

Contrast

#09319f as textRatioAAAA largeAAAFix
Aaon white
10.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #396bf3 as the text (4.57:1)
  • AAA: use #6e93f7 as the text (7.18:1)
  • AA: or shift the background to #a8a8a8 (4.53:1)
  • AAA: or shift the background to #d1d1d1 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #09319f as the background.

Brands using this color

Fonts for this mood

#09319f reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #09319f
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 #09319f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/09319f-9ca2c4-df724e-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