Color

#1d7ea5

#1d7ea5
hex#1d7ea5
rgbrgb(29, 126, 165)
hslhsl(197, 70%, 38%)
oklchoklch(0.558 0.103 230.8)
Closest name: Bleu Ciel (#007ba1)Relative luminance 0.179

Colors that go with #1d7ea5

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 →

#a5441d

#1da587 · #1d3aa5

#a51d7e · #7ea51d

Split-complementary

Open in tool →

#a51d3a · #a5871d

#871da5 · #a5441d · #3aa51d

Contrast

#1d7ea5 as textRatioAAAA largeAAAFix
Aaon white
4.59:1passpassfail
  • AAA: use #155d79 as the text (7.31:1)
Aaon black
4.58:1passpassfail
  • AAA: use #25a0d0 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d7ea5 as the background.

Brands using this color

Fonts for this mood

#1d7ea5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d7ea5
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 #1d7ea5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d7ea5-9cb4c4-df4e6b-1f232d-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