Color

#1766b5

#1766b5
hex#1766b5
rgbrgb(23, 102, 181)
hslhsl(210, 77%, 40%)
oklchoklch(0.508 0.144 253.2)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1302

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b56617

#17b5b5 · #1717b5

#b51766 · #66b517

Split-complementary

Open in tool →

#b51717 · #b5b517

#b517b5 · #b56617 · #17b517

Contrast

#1766b5 as textRatioAAAA largeAAAFix
Aaon white
5.83:1passpassfail
  • AAA: use #15599e as the text (7.11:1)
Aaon black
3.6:1failpassfail
  • AA: use #1b75d0 as the text (4.5:1)
  • AAA: use #4a99e8 as the text (7.01:1)
  • AA: or shift the background to #e3e3e3 (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 #1766b5 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#1766b5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1766b5
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 #1766b5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1766b5-9cabc4-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