Color

#0f90a3

#0f90a3
hex#0f90a3
rgbrgb(15, 144, 163)
hslhsl(188, 83%, 35%)
oklchoklch(0.6 0.102 211.4)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2269

Colors that go with #0f90a3

Charcoal, Copper and Crimson 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 →

#a3230f

#0fa36d · #0f45a3

#a30f90 · #90a30f

Split-complementary

Open in tool →

#a30f45 · #a36d0f

#6d0fa3 · #a3230f · #45a30f

Contrast

#0f90a3 as textRatioAAAA largeAAAFix
Aaon white
3.79:1failpassfail
  • AA: use #0d7f91 as the text (4.71:1)
  • AAA: use #0a6270 as the text (7.01:1)
  • AA: or shift the background to #1a1a1a (4.59:1)
Aaon black
5.54:1passpassfail
  • AAA: use #11a4bb as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f90a3 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

#0f90a3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f90a3
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 #0f90a3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f90a3-a2b7be-df4e81-1f252d-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