Color

#0ba3da

#0ba3da
hex#0ba3da
rgbrgb(11, 163, 218)
hslhsl(196, 90%, 45%)
oklchoklch(0.672 0.135 231.8)
Closest name: Blue Burst (#309cd0)Relative luminance 0.3133

Tints & shades

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

Harmonies

Complementary

Open in tool →

#da430b

#0bdaaa · #0b3cda

#da0ba3 · #a3da0b

Split-complementary

Open in tool →

#da0b3c · #daaa0b

#aa0bda · #da430b · #3cda0b

Contrast

#0ba3da as textRatioAAAA largeAAAFix
Aaon white
2.89:1failfailfail
  • AA: use #097faa as the text (4.54:1)
  • AAA: use #075e7e as the text (7.21:1)
  • AA: or shift the background to #303030 (4.57:1)
  • AAA: or shift the background to #050505 (7.05:1)
Aaon black
7.27:1passpasspassPasses 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 #0ba3da 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

#0ba3da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0ba3da
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0ba3da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0ba3da-9cb5c4-df4e6e-1f232d-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