Color

#1891af

#1891af
hex#1891af
rgbrgb(24, 145, 175)
hslhsl(192, 76%, 39%)
oklchoklch(0.609 0.106 220.3)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2354

Colors that go with #1891af

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 →

#af3618

#18af82 · #1845af

#af1891 · #91af18

Split-complementary

Open in tool →

#af1845 · #af8218

#8218af · #af3618 · #45af18

Contrast

#1891af as textRatioAAAA largeAAAFix
Aaon white
3.68:1failpassfail
  • AA: use #157e99 as the text (4.69:1)
  • AAA: use #106175 as the text (7.03:1)
  • AA: or shift the background to #1c1c1c (4.63:1)
Aaon black
5.71:1passpassfail
  • AAA: use #1ba3c5 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1891af 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

#1891af reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1891af
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 #1891af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1891af-a2b5be-df4e77-1f242d-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