Color

#186bd8

#186bd8
hex#186bd8
rgbrgb(24, 107, 216)
hslhsl(214, 80%, 47%)
oklchoklch(0.545 0.184 257.8)
Closest name: royalblue (#4169e1)Relative luminance 0.1567

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d88518

#18cbd8 · #2518d8

#d8186b · #6bd818

Split-complementary

Open in tool →

#d82518 · #cbd818

#d818cb · #d88518 · #18d825

Contrast

#186bd8 as textRatioAAAA largeAAAFix
Aaon white
5.08:1passpassfail
  • AAA: use #1354aa as the text (7.3:1)
Aaon black
4.13:1failpassfail
  • AA: use #1972e6 as the text (4.59:1)
  • AAA: use #5597ec as the text (7.02:1)
  • 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 #186bd8 as the background.

Brands using this color

Fonts for this mood

#186bd8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #186bd8
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 #186bd8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/186bd8-9ca9c4-df5a4e-1f1f2d-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