Color

#0a2a8a

#0a2a8a
hex#0a2a8a
rgbrgb(10, 42, 138)
hslhsl(225, 86%, 29%)
oklchoklch(0.34 0.163 264.4)
Closest name: Deepsea Kraken (#082599)Relative luminance 0.0356

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a6a0a

#0a6a8a · #2a0a8a

#8a0a2a · #2a8a0a

Split-complementary

Open in tool →

#8a2a0a · #6a8a0a

#8a0a6a · #8a6a0a · #0a8a2a

Contrast

#0a2a8a as textRatioAAAA largeAAAFix
Aaon white
12.27:1passpasspassPasses AAA — no fix needed.
Aaon black
1.71:1failfailfail
  • AA: use #416df1 as the text (4.68:1)
  • AAA: use #7192f4 as the text (7.12:1)
  • AA: or shift the background to #9e9e9e (4.58:1)
  • AAA: or shift the background to #c4c4c4 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a2a8a as the background.

Brands using this color

Fonts for this mood

#0a2a8a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a2a8a
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 #0a2a8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a2a8a-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