Color

#2e303e

#2e303e
hex#2e303e
rgbrgb(46, 48, 62)
hslhsl(233, 15%, 21%)
oklchoklch(0.313 0.025 278.5)
Closest name: Nightmare Fuel (#293135)Relative luminance 0.0304

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e3c2e

#2e373e · #342e3e

#3e2e2f · #2f3e2e

Split-complementary

Open in tool →

#3e342e · #373e2e

#3e2e37 · #3e3c2e · #2e3e34

Contrast

#2e303e as textRatioAAAA largeAAAFix
Aaon white
13.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #6f7495 as the text (4.61:1)
  • AAA: use #9296af as the text (7.2:1)
  • AA: or shift the background to #999999 (4.58:1)
  • AAA: or shift the background to #bfbfbf (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2e303e as the background.

Brands using this color

Fonts for this mood

#2e303e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2e303e
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 #2e303e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2e303e-9c9cc4-df884e-241f2d-e9eef1?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