Color

#0d4c54

#0d4c54
hex#0d4c54
rgbrgb(13, 76, 84)
hslhsl(187, 73%, 19%)
oklchoklch(0.383 0.061 207.9)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0589

Tints & shades

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

Harmonies

Complementary

Open in tool →

#54150d

#0d5439 · #0d2854

#540d4c · #4c540d

Split-complementary

Open in tool →

#540d28 · #54390d

#390d54 · #54150d · #28540d

Contrast

#0d4c54 as textRatioAAAA largeAAAFix
Aaon white
9.64:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #178392 as the text (4.7:1)
  • AAA: use #1da7b9 as the text (7.28:1)
  • AA: or shift the background to #b3b3b3 (4.6:1)
  • AAA: or shift the background to #dedede (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 #0d4c54 as the background.

Brands using this color

Fonts for this mood

#0d4c54 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d4c54
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 #0d4c54 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d4c54-a2b8be-df4e83-1f262d-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