Color

#05b5eb

#05b5eb
hex#05b5eb
rgbrgb(5, 181, 235)
hslhsl(194, 96%, 47%)
oklchoklch(0.723 0.141 228.6)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.3908

Colors that go with #05b5eb

Charcoal, Amber and Dark Orange 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 →

#eb3a05

#05ebae · #0542eb

#eb05b5 · #b5eb05

Split-complementary

Open in tool →

#eb0542 · #ebae05

#ae05eb · #eb3a05 · #42eb05

Contrast

#05b5eb as textRatioAAAA largeAAAFix
Aaon white
2.38:1failfailfail
  • AA: use #037fa5 as the text (4.58:1)
  • AAA: use #03607d as the text (7.06:1)
  • AA: or shift the background to #3d3d3d (4.56:1)
  • AAA: or shift the background to #1c1c1c (7.15:1)
Aaon black
8.82:1passpasspassPasses 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 #05b5eb as the background.

Brands using this color

Fonts for this mood

#05b5eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #05b5eb
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 #05b5eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/05b5eb-9cb6c4-df4e72-1f242d-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