Color

#04272f

#04272f
hex#04272f
rgbrgb(4, 39, 47)
hslhsl(191, 84%, 10%)
oklchoklch(0.253 0.041 216.5)
Closest name: Black Box (#0f282f)Relative luminance 0.0168

Colors that go with #04272f

Charcoal, Crimson and Rust lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #04272f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2f0c04

#042f21 · #04122f

#2f0427 · #272f04

Split-complementary

Open in tool →

#2f0412 · #2f2104

#21042f · #2f0c04 · #122f04

Contrast

#04272f as textRatioAAAA largeAAAFix
Aaon white
15.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #0d819b as the text (4.63:1)
  • AAA: use #11a4c5 as the text (7.14:1)
  • AA: or shift the background to #8a8a8a (4.55:1)
  • AAA: or shift the background to #adadad (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04272f 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

#04272f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04272f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #04272f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04272f-a2b6be-df4e7a-1f252d-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