Color

#0991be

#0991be
hex#0991be
rgbrgb(9, 145, 190)
hslhsl(195, 91%, 39%)
oklchoklch(0.615 0.12 229.4)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2403

Colors that go with #0991be

Charcoal, Crimson and Amber 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 →

#be3609

#09be91 · #0936be

#be0991 · #91be09

Split-complementary

Open in tool →

#be0936 · #be9109

#9109be · #be3609 · #36be09

Contrast

#0991be as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #087ea6 as the text (4.62:1)
  • AAA: use #06607f as the text (7.03:1)
  • AA: or shift the background to #1f1f1f (4.56:1)
Aaon black
5.81:1passpassfail
  • AAA: use #0aa3d6 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0991be as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#0991be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0991be
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 #0991be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0991be-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