Color

#1d7add

#1d7add
hex#1d7add
rgbrgb(29, 122, 221)
hslhsl(211, 77%, 49%)
oklchoklch(0.581 0.172 254.4)
Closest name: Royal Blue (#4169e1)Relative luminance 0.194

Colors that go with #1d7add

Charcoal, Crimson and Copper 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 →

#dd801d

#1ddadd · #201ddd

#dd1d7a · #7add1d

Split-complementary

Open in tool →

#dd201d · #dadd1d

#dd1dda · #dd801d · #1ddd20

Contrast

#1d7add as textRatioAAAA largeAAAFix
Aaon white
4.3:1failpassfail
  • AA: use #1c75d4 as the text (4.62:1)
  • AAA: use #1559a2 as the text (7.04:1)
  • AA: or shift the background to #0d0d0d (4.52:1)
Aaon black
4.88:1passpassfail
  • AAA: use #4f99e8 as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d7add as the background.

Brands using this color

Fonts for this mood

#1d7add reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d7add
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 #1d7add and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d7add-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