Color

#0a2e8a

#0a2e8a
hex#0a2e8a
rgbrgb(10, 46, 138)
hslhsl(223, 86%, 29%)
oklchoklch(0.348 0.158 263.7)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0385

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a660a

#0a6e8a · #260a8a

#8a0a2e · #2e8a0a

Split-complementary

Open in tool →

#8a260a · #6e8a0a

#8a0a6e · #8a660a · #0a8a26

Contrast

#0a2e8a as textRatioAAAA largeAAAFix
Aaon white
11.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #386cf0 as the text (4.57:1)
  • AAA: use #6c92f4 as the text (7.06:1)
  • AA: or shift the background to #a1a1a1 (4.59:1)
  • AAA: or shift the background to #c7c7c7 (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 #0a2e8a as the background.

Brands using this color

Fonts for this mood

#0a2e8a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a2e8a
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 #0a2e8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a2e8a-9ca3c4-df704e-211f2d-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