Color

#187b7c

#187b7c
hex#187b7c
rgbrgb(24, 123, 124)
hslhsl(181, 68%, 29%)
oklchoklch(0.531 0.085 196)
Closest name: Emperor Jade (#007b75)Relative luminance 0.1582

Colors that go with #187b7c

Charcoal, Crimson and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7c1918

#187c4c · #18487c

#7c187b · #7b7c18

Split-complementary

Open in tool →

#7c1848 · #7c4c18

#4c187c · #7c1918 · #487c18

Contrast

#187b7c as textRatioAAAA largeAAAFix
Aaon white
5.04:1passpassfail
  • AAA: use #136163 as the text (7.2:1)
Aaon black
4.16:1failpassfail
  • AA: use #198385 as the text (4.63:1)
  • AAA: use #20a5a7 as the text (7:1)
  • AA: or shift the background to #f2f2f2 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #187b7c as the background.

Brands using this color

Fonts for this mood

#187b7c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #187b7c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #187b7c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/187b7c-a2babe-d45992-1f272d-e9f1ed?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