Color

#1b68bb

#1b68bb
hex#1b68bb
rgbrgb(27, 104, 187)
hslhsl(211, 75%, 42%)
oklchoklch(0.518 0.149 254.2)
Closest name: Denim (#1560bd)Relative luminance 0.1372

Colors that go with #1b68bb

Charcoal, Crimson and Amber 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 →

#bb6e1b

#1bb9bb · #1d1bbb

#bb1b68 · #68bb1b

Split-complementary

Open in tool →

#bb1d1b · #b9bb1b

#bb1bb9 · #bb6e1b · #1bbb1d

Contrast

#1b68bb as textRatioAAAA largeAAAFix
Aaon white
5.61:1passpassfail
  • AAA: use #16579c as the text (7.3:1)
Aaon black
3.74:1failpassfail
  • AA: use #1e75d2 as the text (4.53:1)
  • AAA: use #5199e6 as the text (7.05:1)
  • AA: or shift the background to #e8e8e8 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b68bb as the background.

Brands using this color

Fonts for this mood

#1b68bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b68bb
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 #1b68bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b68bb-9cabc4-df534e-1f202d-e9f1f1?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