Color

#27283f

#27283f
hex#27283f
rgbrgb(39, 40, 63)
hslhsl(238, 24%, 20%)
oklchoklch(0.287 0.042 281.5)
Closest name: Midnight Express (#21263a)Relative luminance 0.0231

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f3e27

#27343f · #32273f

#3f2728 · #283f27

Split-complementary

Open in tool →

#3f3227 · #343f27

#3f2734 · #3f3e27 · #273f32

Contrast

#27283f as textRatioAAAA largeAAAFix
Aaon white
14.37:1passpasspassPasses AAA — no fix needed.
Aaon black
1.46:1failfailfail
  • AA: use #7173a8 as the text (4.72:1)
  • AAA: use #9092bb as the text (7.01:1)
  • AA: or shift the background to #919191 (4.56:1)
  • AAA: or shift the background to #b5b5b5 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #27283f 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

#27283f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #27283f
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 #27283f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/27283f-9f9cc4-df944e-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