Color

#19737b

#19737b
hex#19737b
rgbrgb(25, 115, 123)
hslhsl(185, 66%, 29%)
oklchoklch(0.509 0.08 204.1)
Closest name: Emperor Jade (#007b75)Relative luminance 0.139

Colors that go with #19737b

Charcoal, Crimson and Cobalt Blue 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 →

#7b2119

#197b52 · #19427b

#7b1973 · #737b19

Split-complementary

Open in tool →

#7b1942 · #7b5219

#52197b · #7b2119 · #427b19

Contrast

#19737b as textRatioAAAA largeAAAFix
Aaon white
5.56:1passpassfail
  • AAA: use #155f66 as the text (7.34:1)
Aaon black
3.78:1failpassfail
  • AA: use #1d828c as the text (4.62:1)
  • AAA: use #24a6b2 as the text (7.17:1)
  • AA: or shift the background to #e8e8e8 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #19737b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#19737b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #19737b
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 #19737b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/19737b-a2b8be-df4e88-1f262d-e9f1ee?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