Color

#0c4e55

#0c4e55
hex#0c4e55
rgbrgb(12, 78, 85)
hslhsl(186, 75%, 19%)
oklchoklch(0.389 0.062 206)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0618

Tints & shades

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

Harmonies

Complementary

Open in tool →

#55130c

#0c5538 · #0c2955

#550c4e · #4e550c

Split-complementary

Open in tool →

#550c29 · #55380c

#380c55 · #55130c · #29550c

Contrast

#0c4e55 as textRatioAAAA largeAAAFix
Aaon white
9.39:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #14838f as the text (4.67:1)
  • AAA: use #1aa7b7 as the text (7.26:1)
  • AA: or shift the background to #b5b5b5 (4.58:1)
  • AAA: or shift the background to #e0e0e0 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c4e55 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0c4e55 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c4e55
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 #0c4e55 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c4e55-a2b8be-df4e86-1f262d-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