Color

#0a059e

#0a059e
hex#0a059e
rgbrgb(10, 5, 158)
hslhsl(242, 94%, 32%)
oklchoklch(0.322 0.215 266)
Closest name: Everlasting Night (#000099)Relative luminance 0.0264

Colors that go with #0a059e

Steel Blue, Cobalt Blue and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#999e05

#054c9e · #57059e

#9e0a05 · #059e0a

Split-complementary

Open in tool →

#9e5705 · #4c9e05

#9e054c · #999e05 · #059e57

Contrast

#0a059e as textRatioAAAA largeAAAFix
Aaon white
13.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #6661fa as the text (4.66:1)
  • AAA: use #8c88fb as the text (7.03:1)
  • AA: or shift the background to #949494 (4.53:1)
  • AAA: or shift the background to #bababa (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a059e as the background.

Brands using this color

Fonts for this mood

#0a059e reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a059e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #0a059e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a059e-a29cc4-df9e4e-261f2d-e9edf1?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