Color

#186ffb

#186ffb
hex#186ffb
rgbrgb(24, 111, 251)
hslhsl(217, 97%, 54%)
oklchoklch(0.58 0.223 260.4)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1853

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fba418

#18e1fb · #3218fb

#fb186f · #6ffb18

Split-complementary

Open in tool →

#fb3218 · #e1fb18

#fb18e1 · #fba418 · #18fb32

Contrast

#186ffb as textRatioAAAA largeAAAFix
Aaon white
4.46:1failpassfail
  • AA: use #136cfb as the text (4.6:1)
  • AAA: use #034fc9 as the text (7.08:1)
  • AA: or shift the background to #050505 (4.57:1)
Aaon black
4.71:1passpassfail
  • AAA: use #5495fc as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #186ffb as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/186ffb-9ca7c4-df624e-201f2d-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