Color

#166dd0

#166dd0
hex#166dd0
rgbrgb(22, 109, 208)
hslhsl(212, 81%, 45%)
oklchoklch(0.543 0.172 255.8)
Closest name: God of Rain (#4466cc)Relative luminance 0.1566

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d07916

#16cad0 · #1c16d0

#d0166d · #6dd016

Split-complementary

Open in tool →

#d01c16 · #cad016

#d016ca · #d07916 · #16d01c

Contrast

#166dd0 as textRatioAAAA largeAAAFix
Aaon white
5.08:1passpassfail
  • AAA: use #1157a6 as the text (7.15:1)
Aaon black
4.13:1failpassfail
  • AA: use #1774de as the text (4.59:1)
  • AAA: use #5099ed as the text (7.12:1)
  • AA: or shift the background to #f2f2f2 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #166dd0 as the background.

Brands using this color

Fonts for this mood

#166dd0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #166dd0
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 #166dd0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/166dd0-9caac4-df564e-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