Color

#0b4b60

#0b4b60
hex#0b4b60
rgbrgb(11, 75, 96)
hslhsl(195, 79%, 21%)
oklchoklch(0.386 0.069 226.1)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0595

Colors that go with #0b4b60

Crimson, Royal Blue and Teal 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 →

#60200b

#0b604b · #0b2060

#600b4b · #4b600b

Split-complementary

Open in tool →

#600b20 · #604b0b

#4b0b60 · #60200b · #20600b

Contrast

#0b4b60 as textRatioAAAA largeAAAFix
Aaon white
9.59:1passpasspassPasses AAA — no fix needed.
Aaon black
2.19:1failfailfail
  • AA: use #1380a4 as the text (4.65:1)
  • AAA: use #19a4d2 as the text (7.28:1)
  • AA: or shift the background to #b3b3b3 (4.57:1)
  • AAA: or shift the background to #dedede (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b4b60 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

#0b4b60 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b4b60
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 #0b4b60 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b4b60-9cb5c4-df4e70-1f242d-e9f1ef?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