Color

#429cf5

#429cf5
hex#429cf5
rgbrgb(66, 156, 245)
hslhsl(210, 90%, 61%)
oklchoklch(0.68 0.157 251.1)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3153

Colors that go with #429cf5

Charcoal, Medium Sea Green and Tomato 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 →

#f59c42

#42f5f5 · #4242f5

#f5429c · #9cf542

Split-complementary

Open in tool →

#f54242 · #f5f542

#f542f5 · #f59c42 · #42f542

Contrast

#429cf5 as textRatioAAAA largeAAAFix
Aaon white
2.87:1failfailfail
  • AA: use #0c75df as the text (4.54:1)
  • AAA: use #0957a5 as the text (7.2:1)
  • AA: or shift the background to #303030 (4.59:1)
  • AAA: or shift the background to #050505 (7.09:1)
Aaon black
7.31:1passpasspassPasses 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 #429cf5 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#429cf5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #429cf5
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 #429cf5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/429cf5-9cabc4-df514e-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