Color

#04023b

#04023b
hex#04023b
rgbrgb(4, 2, 59)
hslhsl(242, 93%, 12%)
oklchoklch(0.168 0.104 269.4)
Closest name: Oblivion (#000435)Relative luminance 0.0038

Tints & shades

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

Harmonies

Complementary

Open in tool →

#393b02

#021d3b · #20023b

#3b0402 · #023b04

Split-complementary

Open in tool →

#3b2002 · #1d3b02

#3b021d · #393b02 · #023b20

Contrast

#04023b as textRatioAAAA largeAAAFix
Aaon white
19.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #6762f9 as the text (4.69:1)
  • AAA: use #8d89fb as the text (7.1:1)
  • AA: or shift the background to #7a7a7a (4.54:1)
  • AAA: or shift the background to #9c9c9c (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04023b 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

#04023b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04023b
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 #04023b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04023b-a29cc4-df9e4e-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