Color

#042a67

#042a67
hex#042a67
rgbrgb(4, 42, 103)
hslhsl(217, 93%, 21%)
oklchoklch(0.303 0.115 260)
Closest name: Marine (#042e60)Relative luminance 0.0266

Tints & shades

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

Harmonies

Complementary

Open in tool →

#674104

#045c67 · #0f0467

#67042a · #2a6704

Split-complementary

Open in tool →

#670f04 · #5c6704

#67045c · #674104 · #04670f

Contrast

#042a67 as textRatioAAAA largeAAAFix
Aaon white
13.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #186df7 as the text (4.57:1)
  • AAA: use #5895f9 as the text (7.08:1)
  • AA: or shift the background to #949494 (4.52:1)
  • AAA: or shift the background to #bababa (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #042a67 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

#042a67 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #042a67
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #042a67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/042a67-9ca7c4-df624e-201f2d-e9f0f1?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