Color

#1b8fa7

#1b8fa7
hex#1b8fa7
rgbrgb(27, 143, 167)
hslhsl(190, 72%, 38%)
oklchoklch(0.601 0.101 216.2)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2267

Colors that go with #1b8fa7

Charcoal, Copper and Crimson 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 →

#a7321b

#1ba778 · #1b4aa7

#a71b8f · #8fa71b

Split-complementary

Open in tool →

#a71b4a · #a7781b

#781ba7 · #a7321b · #4aa71b

Contrast

#1b8fa7 as textRatioAAAA largeAAAFix
Aaon white
3.8:1failpassfail
  • AA: use #188095 as the text (4.6:1)
  • AAA: use #125e6e as the text (7.36:1)
  • AA: or shift the background to #1a1a1a (4.59:1)
Aaon black
5.53:1passpassfail
  • AAA: use #1fa6c1 as the text (7.28:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b8fa7 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

#1b8fa7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b8fa7
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 #1b8fa7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b8fa7-a2b6be-df4e7c-1f252d-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