Color

#0a33ae

#0a33ae
hex#0a33ae
rgbrgb(10, 51, 174)
hslhsl(225, 89%, 36%)
oklchoklch(0.395 0.198 264.2)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0549

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#ae850a

#0a85ae · #330aae

#ae0a33 · #33ae0a

Split-complementary

Open in tool →

#ae330a · #85ae0a

#ae0a85 · #ae850a · #0aae33

Contrast

#0a33ae as textRatioAAAA largeAAAFix
Aaon white
10.01:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #3e6cf4 as the text (4.66:1)
  • AAA: use #7394f7 as the text (7.31:1)
  • AA: or shift the background to #b0b0b0 (4.62:1)
  • AAA: or shift the background to #d9d9d9 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a33ae 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

#0a33ae reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a33ae
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0a33ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a33ae-9ca1c4-df754e-221f2d-e9eff1?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