Color

#0ba8cb

#0ba8cb
hex#0ba8cb
rgbrgb(11, 168, 203)
hslhsl(191, 90%, 42%)
oklchoklch(0.677 0.122 220)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3239

Colors that go with #0ba8cb

Charcoal, Tomato 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.

Real palettes that use #0ba8cb

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb2e0b

#0bcb8e · #0b48cb

#cb0ba8 · #a8cb0b

Split-complementary

Open in tool →

#cb0b48 · #cb8e0b

#8e0bcb · #cb2e0b · #48cb0b

Contrast

#0ba8cb as textRatioAAAA largeAAAFix
Aaon white
2.81:1failfailfail
  • AA: use #08809b as the text (4.59:1)
  • AAA: use #066074 as the text (7.16:1)
  • AA: or shift the background to #303030 (4.7:1)
  • AAA: or shift the background to #0a0a0a (7.05:1)
Aaon black
7.48:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0ba8cb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0ba8cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0ba8cb
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 #0ba8cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0ba8cb-a2b6be-df4e7a-1f252d-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