Color

#166eda

#166eda
hex#166eda
rgbrgb(22, 110, 218)
hslhsl(213, 82%, 47%)
oklchoklch(0.552 0.183 257)
Closest name: royalblue (#4169e1)Relative luminance 0.1638

Tints & shades

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

Harmonies

Complementary

Open in tool →

#da8216

#16d0da · #1f16da

#da166e · #6eda16

Split-complementary

Open in tool →

#da1f16 · #d0da16

#da16d0 · #da8216 · #16da1f

Contrast

#166eda as textRatioAAAA largeAAAFix
Aaon white
4.91:1passpassfail
  • AAA: use #1157ac as the text (7.04:1)
Aaon black
4.28:1failpassfail
  • AA: use #1673e3 as the text (4.6:1)
  • AAA: use #5399ee as the text (7.16:1)
  • AA: or shift the background to #f5f5f5 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #166eda as the background.

Brands using this color

Fonts for this mood

#166eda reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #166eda
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 #166eda and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/166eda-9ca9c4-df584e-1f202d-e9f0f1?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