Color

#1f99b2

#1f99b2
hex#1f99b2
rgbrgb(31, 153, 178)
hslhsl(190, 70%, 41%)
oklchoklch(0.631 0.105 215.9)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2629

Colors that go with #1f99b2

Charcoal, Copper and Orange Red 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.

Real palettes that use #1f99b2

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b2381f

#1fb281 · #1f50b2

#b21f99 · #99b21f

Split-complementary

Open in tool →

#b21f50 · #b2811f

#811fb2 · #b2381f · #50b21f

Contrast

#1f99b2 as textRatioAAAA largeAAAFix
Aaon white
3.36:1failpassfail
  • AA: use #1a7f93 as the text (4.67:1)
  • AAA: use #146171 as the text (7.05:1)
  • AA: or shift the background to #262626 (4.51:1)
Aaon black
6.26:1passpassfail
  • AAA: use #22a5bf as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f99b2 as the background.

Brands using this color

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

Fonts for this mood

#1f99b2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f99b2
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 #1f99b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f99b2-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