Color

#0f4b5c

#0f4b5c
hex#0f4b5c
rgbrgb(15, 75, 92)
hslhsl(193, 72%, 21%)
oklchoklch(0.385 0.064 221.8)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.0591

Colors that go with #0f4b5c

Crimson, Denim 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 →

#5c200f

#0f5c46 · #0f255c

#5c0f4b · #4b5c0f

Split-complementary

Open in tool →

#5c0f25 · #5c460f

#460f5c · #5c200f · #255c0f

Contrast

#0f4b5c as textRatioAAAA largeAAAFix
Aaon white
9.63:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #1a819e as the text (4.68:1)
  • AAA: use #20a2c5 as the text (7.04:1)
  • AA: or shift the background to #b3b3b3 (4.59:1)
  • 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 #0f4b5c 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

#0f4b5c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f4b5c
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 #0f4b5c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f4b5c-a2b5be-df4e75-1f242d-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