Color

#1f8bbd

#1f8bbd
hex#1f8bbd
rgbrgb(31, 139, 189)
hslhsl(199, 72%, 43%)
oklchoklch(0.602 0.118 234.9)
Closest name: steelblue (#4682b4)Relative luminance 0.2243

Colors that go with #1f8bbd

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 →

#bd511f

#1fbda0 · #1f3cbd

#bd1f8b · #8bbd1f

Split-complementary

Open in tool →

#bd1f3c · #bda01f

#a01fbd · #bd511f · #3cbd1f

Contrast

#1f8bbd as textRatioAAAA largeAAAFix
Aaon white
3.83:1failpassfail
  • AA: use #1c7eab as the text (4.54:1)
  • AAA: use #155d7f as the text (7.23:1)
  • AA: or shift the background to #1a1a1a (4.55:1)
Aaon black
5.49:1passpassfail
  • AAA: use #24a1db 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 #1f8bbd 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

#1f8bbd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f8bbd
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 #1f8bbd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f8bbd-9cb3c4-df4e66-1f232d-e9f1f0?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