Color

#27273f

#27273f
hex#27273f
rgbrgb(39, 39, 63)
hslhsl(240, 24%, 20%)
oklchoklch(0.285 0.044 283.3)
Closest name: Midnight Express (#21263a)Relative luminance 0.0224

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f3f27

#27333f · #33273f

#3f2727 · #273f27

Split-complementary

Open in tool →

#3f3327 · #333f27

#3f2733 · #3f3f27 · #273f33

Contrast

#27273f as textRatioAAAA largeAAAFix
Aaon white
14.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.45:1failfailfail
  • AA: use #7171a8 as the text (4.63:1)
  • AAA: use #9393bd as the text (7.15:1)
  • AA: or shift the background to #919191 (4.6:1)
  • AAA: or shift the background to #b5b5b5 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #27273f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#27273f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #27273f
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 #27273f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/27273f-a19cc4-df994e-251f2d-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