Color

#0b02bb

#0b02bb
hex#0b02bb
rgbrgb(11, 2, 187)
hslhsl(243, 98%, 37%)
oklchoklch(0.361 0.246 265.5)
Closest name: mediumblue (#0000cd)Relative luminance 0.037

Colors that go with #0b02bb

Charcoal, Blue and Cobalt 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 →

#b2bb02

#0255bb · #6802bb

#bb0b02 · #02bb0b

Split-complementary

Open in tool →

#bb6802 · #55bb02

#bb0255 · #b2bb02 · #02bb68

Contrast

#0b02bb as textRatioAAAA largeAAAFix
Aaon white
12.07:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #655dfd as the text (4.54:1)
  • AAA: use #918bfe as the text (7.33:1)
  • AA: or shift the background to #9e9e9e (4.5:1)
  • AAA: or shift the background to #c7c7c7 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b02bb 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

#0b02bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b02bb
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 #0b02bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b02bb-a39cc4-dfa04e-261f2d-e9edf1?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