Color

#19858f

#19858f
hex#19858f
rgbrgb(25, 133, 143)
hslhsl(185, 70%, 33%)
oklchoklch(0.565 0.091 204.7)
Closest name: darkcyan (#008b8b)Relative luminance 0.1896

Colors that go with #19858f

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 →

#8f2319

#198f5e · #194a8f

#8f1985 · #858f19

Split-complementary

Open in tool →

#8f194a · #8f5e19

#5e198f · #8f2319 · #4a8f19

Contrast

#19858f as textRatioAAAA largeAAAFix
Aaon white
4.38:1failpassfail
  • AA: use #18818b as the text (4.61:1)
  • AAA: use #126168 as the text (7.15:1)
  • AA: or shift the background to #0a0a0a (4.52:1)
Aaon black
4.79:1passpassfail
  • AAA: use #1fa6b2 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #19858f as the background.

Brands using this color

Fonts for this mood

#19858f reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #19858f
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 #19858f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/19858f-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