Color

#04028d

#04028d
hex#04028d
rgbrgb(4, 2, 141)
hslhsl(241, 97%, 28%)
oklchoklch(0.294 0.199 265.1)
Closest name: darkblue (#00008b)Relative luminance 0.0199

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a8d02

#02458d · #4a028d

#8d0402 · #028d04

Split-complementary

Open in tool →

#8d4a02 · #458d02

#8d0245 · #8a8d02 · #028d4a

Contrast

#04028d as textRatioAAAA largeAAAFix
Aaon white
15.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #615efd as the text (4.53:1)
  • AAA: use #8d8bfd as the text (7.24:1)
  • AA: or shift the background to #8f8f8f (4.64:1)
  • AAA: or shift the background to #b3b3b3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04028d 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

#04028d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04028d
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 #04028d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04028d-a19cc4-df9b4e-261f2d-e9edf1?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