Color

#0a33eb

#0a33eb
hex#0a33eb
rgbrgb(10, 51, 235)
hslhsl(229, 92%, 48%)
oklchoklch(0.463 0.269 264.7)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0843

Colors that go with #0a33eb

Charcoal, Crimson 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 →

#ebc20a

#0aa4eb · #510aeb

#eb0a33 · #33eb0a

Split-complementary

Open in tool →

#eb510a · #a4eb0a

#eb0aa4 · #ebc20a · #0aeb51

Contrast

#0a33eb as textRatioAAAA largeAAAFix
Aaon white
7.82:1passpasspassPasses AAA — no fix needed.
Aaon black
2.69:1failfailfail
  • AA: use #4a6af7 as the text (4.7:1)
  • AAA: use #768ef9 as the text (7.01:1)
  • AA: or shift the background to #c7c7c7 (4.62:1)
  • AAA: or shift the background to #f5f5f5 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a33eb 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

#0a33eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a33eb
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 #0a33eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a33eb-9c9fc4-df7e4e-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