Color

#28343e

#28343e
hex#28343e
rgbrgb(40, 52, 62)
hslhsl(207, 22%, 20%)
oklchoklch(0.318 0.024 243.8)
Closest name: Into the Night (#1e3642)Relative luminance 0.0325

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e3228

#283e3d · #28293e

#3e2834 · #343e28

Split-complementary

Open in tool →

#3e2829 · #3e3d28

#3d283e · #3e3228 · #293e28

Contrast

#28343e as textRatioAAAA largeAAAFix
Aaon white
12.72:1passpasspassPasses AAA — no fix needed.
Aaon black
1.65:1failfailfail
  • AA: use #5b788f as the text (4.53:1)
  • AAA: use #7f99ad as the text (7.06:1)
  • AA: or shift the background to #9c9c9c (4.63:1)
  • AAA: or shift the background to #c2c2c2 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28343e as the background.

Brands using this color

Fonts for this mood

#28343e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28343e
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 #28343e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28343e-9cadc4-df4e53-1f212d-e9f1f1?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