Color

#0d4091

#0d4091
hex#0d4091
rgbrgb(13, 64, 145)
hslhsl(217, 84%, 31%)
oklchoklch(0.393 0.144 260)
Closest name: Cascade Twilight (#234893)Relative luminance 0.058

Colors that go with #0d4091

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 →

#915f0d

#0d8291 · #1c0d91

#910d40 · #40910d

Split-complementary

Open in tool →

#911c0d · #82910d

#910d82 · #915f0d · #0d911c

Contrast

#0d4091 as textRatioAAAA largeAAAFix
Aaon white
9.73:1passpasspassPasses AAA — no fix needed.
Aaon black
2.16:1failfailfail
  • AA: use #2270ec as the text (4.6:1)
  • AAA: use #5f97f1 as the text (7.18:1)
  • AA: or shift the background to #b3b3b3 (4.64:1)
  • AAA: or shift the background to #dbdbdb (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d4091 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#0d4091 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d4091
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 #0d4091 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d4091-9ca7c4-df624e-201f2d-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