Color

#1da7e7

#1da7e7
hex#1da7e7
rgbrgb(29, 167, 231)
hslhsl(199, 81%, 51%)
oklchoklch(0.69 0.142 236.2)
Closest name: Cerulean (#55aaee)Relative luminance 0.3367

Colors that go with #1da7e7

Charcoal, Bronze 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 →

#e75d1d

#1de7c2 · #1d42e7

#e71da7 · #a7e71d

Split-complementary

Open in tool →

#e71d42 · #e7c21d

#c21de7 · #e75d1d · #42e71d

Contrast

#1da7e7 as textRatioAAAA largeAAAFix
Aaon white
2.72:1failfailfail
  • AA: use #127eaf as the text (4.54:1)
  • AAA: use #0e5d81 as the text (7.24:1)
  • AA: or shift the background to #333333 (4.65:1)
  • AAA: or shift the background to #0f0f0f (7.06:1)
Aaon black
7.73:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1da7e7 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1da7e7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1da7e7
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 #1da7e7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1da7e7-9cb3c4-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