Color

#1d52e2

#1d52e2
hex#1d52e2
rgbrgb(29, 82, 226)
hslhsl(224, 77%, 50%)
oklchoklch(0.505 0.225 264.1)
Closest name: C64 Blue (#003aff)Relative luminance 0.1179

Colors that go with #1d52e2

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.

Real palettes that use #1d52e2

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#e2ad1d

#1db4e2 · #4b1de2

#e21d52 · #52e21d

Split-complementary

Open in tool →

#e24b1d · #b4e21d

#e21db4 · #e2ad1d · #1de24b

Contrast

#1d52e2 as textRatioAAAA largeAAAFix
Aaon white
6.25:1passpassfail
  • AAA: use #1b4bd0 as the text (7.09:1)
Aaon black
3.36:1failpassfail
  • AA: use #416de6 as the text (4.55:1)
  • AAA: use #7394ed as the text (7.19:1)
  • AA: or shift the background to #dbdbdb (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d52e2 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1d52e2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d52e2
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 #1d52e2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d52e2-9ca2c4-df724e-221f2d-e9eff1?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