Color

#0f415c

#0f415c
hex#0f415c
rgbrgb(15, 65, 92)
hslhsl(201, 72%, 21%)
oklchoklch(0.357 0.069 237.5)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0465

Colors that go with #0f415c

Crimson, Royal Blue and Teal 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 →

#5c2a0f

#0f5c51 · #0f1b5c

#5c0f41 · #415c0f

Split-complementary

Open in tool →

#5c0f1b · #5c510f

#510f5c · #5c2a0f · #1b5c0f

Contrast

#0f415c as textRatioAAAA largeAAAFix
Aaon white
10.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #1d7caf as the text (4.55:1)
  • AAA: use #2c9fdd as the text (7.11:1)
  • AA: or shift the background to #a8a8a8 (4.57:1)
  • AAA: or shift the background to #d1d1d1 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f415c 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

#0f415c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f415c
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 #0f415c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f415c-9cb1c4-df4e62-1f222d-e9f1f0?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