Color

#2a2f41

#2a2f41
hex#2a2f41
rgbrgb(42, 47, 65)
hslhsl(227, 21%, 21%)
oklchoklch(0.309 0.033 272.3)
Closest name: Blue Whale (#1e3442)Relative luminance 0.0291

Tints & shades

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

Harmonies

Complementary

Open in tool →

#413c2a

#2a3a41 · #312a41

#412a2f · #2f412a

Split-complementary

Open in tool →

#41312a · #3a412a

#412a3a · #413c2a · #2a4131

Contrast

#2a2f41 as textRatioAAAA largeAAAFix
Aaon white
13.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #68739c as the text (4.52:1)
  • AAA: use #8d95b4 as the text (7.09:1)
  • AA: or shift the background to #999999 (4.66:1)
  • AAA: or shift the background to #bdbdbd (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 #2a2f41 as the background.

Brands using this color

Fonts for this mood

#2a2f41 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a2f41
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 #2a2f41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a2f41-9ca0c4-df7a4e-221f2d-e9eff1?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