Color

#0e66be

#0e66be
hex#0e66be
rgbrgb(14, 102, 190)
hslhsl(210, 86%, 40%)
oklchoklch(0.513 0.158 254.2)
Closest name: Denim (#1560bd)Relative luminance 0.1331

Colors that go with #0e66be

Charcoal, Crimson and Sienna 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 →

#be660e

#0ebebe · #0e0ebe

#be0e66 · #66be0e

Split-complementary

Open in tool →

#be0e0e · #bebe0e

#be0ebe · #be660e · #0ebe0e

Contrast

#0e66be as textRatioAAAA largeAAAFix
Aaon white
5.73:1passpassfail
  • AAA: use #0c59a6 as the text (7.01:1)
Aaon black
3.66:1failpassfail
  • AA: use #1075da as the text (4.58:1)
  • AAA: use #4199f1 as the text (7.05:1)
  • AA: or shift the background to #e6e6e6 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0e66be as the background.

Brands using this color

Fonts for this mood

#0e66be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0e66be
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 #0e66be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0e66be-9cabc4-df514e-1f202d-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