Color

#2a3741

#2a3741
hex#2a3741
rgbrgb(42, 55, 65)
hslhsl(206, 21%, 21%)
oklchoklch(0.329 0.025 241.6)
Closest name: Astral Nomad (#203943)Relative luminance 0.0361

Tints & shades

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

Harmonies

Complementary

Open in tool →

#41342a

#2a413f · #2a2c41

#412a37 · #37412a

Split-complementary

Open in tool →

#412a2c · #413f2a

#3f2a41 · #41342a · #2c412a

Contrast

#2a3741 as textRatioAAAA largeAAAFix
Aaon white
12.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #5d798e as the text (4.59:1)
  • AAA: use #8099ac as the text (7.07:1)
  • AA: or shift the background to #9e9e9e (4.55:1)
  • AAA: or shift the background to #c7c7c7 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a3741 as the background.

Brands using this color

Fonts for this mood

#2a3741 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a3741
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 #2a3741 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a3741-9caec4-df4e56-1f212d-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