Color

#0f2bb8

#0f2bb8
hex#0f2bb8
rgbrgb(15, 43, 184)
hslhsl(230, 85%, 39%)
oklchoklch(0.394 0.218 265.5)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0529

Colors that go with #0f2bb8

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 →

#b89c0f

#0f80b8 · #470fb8

#b80f2b · #2bb80f

Split-complementary

Open in tool →

#b8470f · #80b80f

#b80f80 · #b89c0f · #0fb847

Contrast

#0f2bb8 as textRatioAAAA largeAAAFix
Aaon white
10.2:1passpasspassPasses AAA — no fix needed.
Aaon black
2.06:1failfailfail
  • AA: use #4c67f0 as the text (4.51:1)
  • AAA: use #7b8ff4 as the text (7.08:1)
  • AA: or shift the background to #adadad (4.55:1)
  • AAA: or shift the background to #d6d6d6 (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 #0f2bb8 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

#0f2bb8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f2bb8
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 #0f2bb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f2bb8-9c9ec4-df814e-231f2d-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