Color

#0b88ef

#0b88ef
hex#0b88ef
rgbrgb(11, 136, 239)
hslhsl(207, 91%, 49%)
oklchoklch(0.622 0.181 251.7)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.2391

Colors that go with #0b88ef

Charcoal, Crimson and Copper 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 →

#ef720b

#0befe3 · #0b17ef

#ef0b88 · #88ef0b

Split-complementary

Open in tool →

#ef0b17 · #efe30b

#e30bef · #ef720b · #17ef0b

Contrast

#0b88ef as textRatioAAAA largeAAAFix
Aaon white
3.63:1failpassfail
  • AA: use #0a78d1 as the text (4.55:1)
  • AAA: use #07599c as the text (7.2:1)
  • AA: or shift the background to #1f1f1f (4.54:1)
Aaon black
5.78:1passpassfail
  • AAA: use #2e9bf5 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b88ef as the background.

Brands using this color

Fonts for this mood

#0b88ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b88ef
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 #0b88ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b88ef-9cadc4-df4e53-1f212d-e9f1f1?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