Color

#04151a

#04151a
hex#04151a
rgbrgb(4, 21, 26)
hslhsl(194, 73%, 6%)
oklchoklch(0.183 0.026 218.5)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.0064

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a0904

#041a15 · #040a1a

#1a0415 · #151a04

Split-complementary

Open in tool →

#1a040a · #1a1504

#15041a · #1a0904 · #0a1a04

Contrast

#04151a as textRatioAAAA largeAAAFix
Aaon white
18.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #19809f as the text (4.63:1)
  • AAA: use #20a3cb as the text (7.16:1)
  • AA: or shift the background to #7d7d7d (4.53:1)
  • AAA: or shift the background to #a1a1a1 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04151a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#04151a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04151a
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 #04151a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04151a-9cb6c4-df4e72-1f242d-e9f1ef?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