Color

#0a033f

#0a033f
hex#0a033f
rgbrgb(10, 3, 63)
hslhsl(247, 91%, 13%)
oklchoklch(0.182 0.106 274.8)
Closest name: Endless Galaxy (#000044)Relative luminance 0.0049

Tints & shades

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

Harmonies

Complementary

Open in tool →

#383f03

#031a3f · #28033f

#3f0a03 · #033f0a

Split-complementary

Open in tool →

#3f2803 · #1a3f03

#3f031a · #383f03 · #033f28

Contrast

#0a033f as textRatioAAAA largeAAAFix
Aaon white
19.13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.1:1failfailfail
  • AA: use #705ef7 as the text (4.63:1)
  • AAA: use #978af9 as the text (7.32:1)
  • AA: or shift the background to #7d7d7d (4.65:1)
  • AAA: or shift the background to #9e9e9e (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 #0a033f 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

#0a033f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a033f
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 #0a033f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a033f-a59cc4-dfaa4e-271f2d-e9ecf1?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