Color

#0a034e

#0a034e
hex#0a034e
rgbrgb(10, 3, 78)
hslhsl(246, 93%, 16%)
oklchoklch(0.204 0.125 271.6)
Closest name: Ravenclaw (#0a0555)Relative luminance 0.0068

Tints & shades

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

Harmonies

Complementary

Open in tool →

#474f03

#03214f · #30034f

#4f0a03 · #034f0a

Split-complementary

Open in tool →

#4f3003 · #214f03

#4f0321 · #474f03 · #034f30

Contrast

#0a034e as textRatioAAAA largeAAAFix
Aaon white
18.49:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #6c5df9 as the text (4.57:1)
  • AAA: use #9489fb as the text (7.23:1)
  • AA: or shift the background to #808080 (4.68:1)
  • AAA: or shift the background to #a1a1a1 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a034e as the background.

Brands using this color

Fonts for this mood

#0a034e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a034e
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 #0a034e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a034e-a59cc4-dfa74e-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