Color

#0a4e52

#0a4e52
hex#0a4e52
rgbrgb(10, 78, 82)
hslhsl(183, 78%, 18%)
oklchoklch(0.387 0.062 201.2)
Closest name: Cape Verde (#01554f)Relative luminance 0.0612

Tints & shades

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

Harmonies

Complementary

Open in tool →

#520e0a

#0a5231 · #0a2a52

#520a4e · #4e520a

Split-complementary

Open in tool →

#520a2a · #52310a

#310a52 · #520e0a · #2a520a

Contrast

#0a4e52 as textRatioAAAA largeAAAFix
Aaon white
9.44:1passpasspassPasses AAA — no fix needed.
Aaon black
2.22:1failfailfail
  • AA: use #118288 as the text (4.57:1)
  • AAA: use #15a5ac as the text (7.01:1)
  • AA: or shift the background to #b3b3b3 (4.5:1)
  • AAA: or shift the background to #dedede (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 #0a4e52 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0a4e52 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a4e52
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 #0a4e52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a4e52-a2b9be-d4598e-1f262d-e9f1ee?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