Color

#186b8c

#186b8c
hex#186b8c
rgbrgb(24, 107, 140)
hslhsl(197, 71%, 32%)
oklchoklch(0.496 0.091 230.4)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.126

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8c3818

#188c72 · #18318c

#8c186b · #6b8c18

Split-complementary

Open in tool →

#8c1831 · #8c7218

#72188c · #8c3818 · #318c18

Contrast

#186b8c as textRatioAAAA largeAAAFix
Aaon white
5.96:1passpassfail
  • AAA: use #155d7a as the text (7.3:1)
Aaon black
3.52:1failpassfail
  • AA: use #1c7fa6 as the text (4.64:1)
  • AAA: use #23a0d1 as the text (7.02:1)
  • AA: or shift the background to #e0e0e0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #186b8c as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#186b8c reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #186b8c
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 #186b8c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/186b8c-9cb4c4-df4e6b-1f232d-e9f1ef?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