Color

#0f1c8a

#0f1c8a
hex#0f1c8a
rgbrgb(15, 28, 138)
hslhsl(234, 80%, 30%)
oklchoklch(0.319 0.177 267.1)
Closest name: Deepsea Kraken (#082599)Relative luminance 0.0277

Colors that go with #0f1c8a

Steel Blue, Blue and Charcoal 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 →

#8a7d0f

#0f598a · #400f8a

#8a0f1c · #1c8a0f

Split-complementary

Open in tool →

#8a400f · #598a0f

#8a0f59 · #8a7d0f · #0f8a40

Contrast

#0f1c8a as textRatioAAAA largeAAAFix
Aaon white
13.52:1passpasspassPasses AAA — no fix needed.
Aaon black
1.55:1failfailfail
  • AA: use #5a68ed as the text (4.64:1)
  • AAA: use #838ef1 as the text (7.1:1)
  • AA: or shift the background to #969696 (4.57:1)
  • AAA: or shift the background to #bdbdbd (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f1c8a as the background.

Brands using this color

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

Fonts for this mood

#0f1c8a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f1c8a
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 #0f1c8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f1c8a-9d9cc4-df8a4e-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