Color

#1d718b

#1d718b
hex#1d718b
rgbrgb(29, 113, 139)
hslhsl(194, 65%, 33%)
oklchoklch(0.512 0.086 223.6)
Closest name: Blue Fjord (#007290)Relative luminance 0.1394

Colors that go with #1d718b

Charcoal, Crimson and Royal 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 →

#8b371d

#1d8b6e · #1d3b8b

#8b1d71 · #718b1d

Split-complementary

Open in tool →

#8b1d3b · #8b6e1d

#6e1d8b · #8b371d · #3b8b1d

Contrast

#1d718b as textRatioAAAA largeAAAFix
Aaon white
5.55:1passpassfail
  • AAA: use #196076 as the text (7.06:1)
Aaon black
3.79:1failpassfail
  • AA: use #217f9c as the text (4.58:1)
  • AAA: use #2aa1c6 as the text (7.01:1)
  • 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 #1d718b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#1d718b reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d718b
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 #1d718b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d718b-9cb6c4-df4e72-1f242d-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