Color

#042cae

#042cae
hex#042cae
rgbrgb(4, 44, 174)
hslhsl(226, 96%, 35%)
oklchoklch(0.382 0.206 264.1)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0488

Colors that go with #042cae

Charcoal, Crimson and Steel 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 →

#af8704

#0481af · #3104af

#af042c · #2caf04

Split-complementary

Open in tool →

#af3104 · #81af04

#af0481 · #af8704 · #04af31

Contrast

#042cae as textRatioAAAA largeAAAFix
Aaon white
10.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.98:1failfailfail
  • AA: use #3c69fb as the text (4.61:1)
  • AAA: use #7393fc as the text (7.31:1)
  • AA: or shift the background to #ababab (4.63:1)
  • AAA: or shift the background to #d4d4d4 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #042cae 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

#042cae reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #042cae
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 #042cae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/042cae-9ca1c4-df774e-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