Color

#187fa5

#187fa5
hex#187fa5
rgbrgb(24, 127, 165)
hslhsl(196, 75%, 37%)
oklchoklch(0.559 0.104 229.4)
Closest name: Ahoy! Blue (#0082a1)Relative luminance 0.1809

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a53d18

#18a584 · #1839a5

#a5187f · #7fa518

Split-complementary

Open in tool →

#a51839 · #a58418

#8418a5 · #a53d18 · #39a518

Contrast

#187fa5 as textRatioAAAA largeAAAFix
Aaon white
4.55:1passpassfail
  • AAA: use #12607d as the text (7.01:1)
Aaon black
4.62:1passpassfail
  • AAA: use #1ea2d2 as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #187fa5 as the background.

Brands using this color

Fonts for this mood

#187fa5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #187fa5
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 #187fa5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/187fa5-9cb5c4-df4e6e-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