Color

#187fc3

#187fc3
hex#187fc3
rgbrgb(24, 127, 195)
hslhsl(204, 78%, 43%)
oklchoklch(0.576 0.136 244.7)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1931

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c35d18

#18c3b2 · #1829c3

#c3187f · #7fc318

Split-complementary

Open in tool →

#c31829 · #c3b218

#b218c3 · #c35d18 · #29c318

Contrast

#187fc3 as textRatioAAAA largeAAAFix
Aaon white
4.32:1failpassfail
  • AA: use #1779ba as the text (4.69:1)
  • AAA: use #115b8d as the text (7.23:1)
  • AA: or shift the background to #0d0d0d (4.5:1)
Aaon black
4.86:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #187fc3 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

#187fc3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #187fc3
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 #187fc3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/187fc3-9cafc4-df4e5a-1f222d-e9f1f0?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