Color

#0a577b

#0a577b
hex#0a577b
rgbrgb(10, 87, 123)
hslhsl(199, 85%, 26%)
oklchoklch(0.433 0.09 236.4)
Closest name: Beyond the Sea (#005784)Relative luminance 0.0831

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b2e0a

#0a7b66 · #0a1f7b

#7b0a57 · #577b0a

Split-complementary

Open in tool →

#7b0a1f · #7b660a

#660a7b · #7b2e0a · #1f7b0a

Contrast

#0a577b as textRatioAAAA largeAAAFix
Aaon white
7.89:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #0e7caf as the text (4.52:1)
  • AAA: use #12a1e2 as the text (7.22:1)
  • AA: or shift the background to #c4c4c4 (4.52:1)
  • AAA: or shift the background to #f2f2f2 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a577b 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

#0a577b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a577b
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 #0a577b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a577b-9cb3c4-df4e66-1f232d-e9f1f0?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