Color

#1a84bc

#1a84bc
hex#1a84bc
rgbrgb(26, 132, 188)
hslhsl(201, 76%, 42%)
oklchoklch(0.584 0.123 238.8)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.2035

Colors that go with #1a84bc

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 →

#bc531a

#1abca4 · #1a32bc

#bc1a84 · #84bc1a

Split-complementary

Open in tool →

#bc1a32 · #bca41a

#a41abc · #bc531a · #32bc1a

Contrast

#1a84bc as textRatioAAAA largeAAAFix
Aaon white
4.14:1failpassfail
  • AA: use #187db4 as the text (4.53:1)
  • AAA: use #125e87 as the text (7.05:1)
  • AA: or shift the background to #121212 (4.52:1)
Aaon black
5.07:1passpassfail
  • AAA: use #239fe1 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a84bc 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

#1a84bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a84bc
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 #1a84bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a84bc-9cb1c4-df4e62-1f222d-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