Color

#6bb0ef

#6bb0ef
hex#6bb0ef
rgbrgb(107, 176, 239)
hslhsl(209, 80%, 68%)
oklchoklch(0.737 0.116 247.5)
Closest name: Cerulean (#55aaee)Relative luminance 0.4041

Colors that go with #6bb0ef

Charcoal, Goldenrod 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 →

#efab6c

#6cefed · #6c6eef

#ef6cb0 · #b0ef6c

Split-complementary

Open in tool →

#ef6c6e · #efed6c

#ed6cef · #efab6c · #6eef6c

Contrast

#6bb0ef as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #1778d3 as the text (4.5:1)
  • AAA: use #11599c as the text (7.16:1)
  • AA: or shift the background to #3d3d3d (4.7:1)
  • AAA: or shift the background to #1f1f1f (7.13:1)
Aaon black
9.08:1passpasspassPasses 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 #6bb0ef as the background.

Brands using this color

Fonts for this mood

#6bb0ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6bb0ef
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 #6bb0ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6bb0ef-9cacc4-df4e4e-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