Color

#04151f

#04151f
hex#04151f
rgbrgb(4, 21, 31)
hslhsl(202, 77%, 7%)
oklchoklch(0.186 0.032 235.6)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.0066

Tints & shades

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

Harmonies

Complementary

Open in tool →

#200e04

#04201c · #040820

#200416 · #162004

Split-complementary

Open in tool →

#200408 · #201c04

#1c0420 · #200e04 · #082004

Contrast

#04151f as textRatioAAAA largeAAAFix
Aaon white
18.55:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #177bb5 as the text (4.54:1)
  • AAA: use #269ee3 as the text (7.08:1)
  • AA: or shift the background to #7d7d7d (4.51:1)
  • AAA: or shift the background to #a1a1a1 (7.18:1)

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

Brands using this color

Palettes built around it

Fonts for this mood

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

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

tool url/palettes/new/04151f-9cb1c4-df4e5f-1f222d-e9f1f0?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