Color

#45454f

#45454f
hex#45454f
rgbrgb(69, 69, 79)
hslhsl(240, 7%, 29%)
oklchoklch(0.394 0.017 285.6)
Closest name: Arsenic (#3b444b)Relative luminance 0.0609

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4f4f45

#454a4f · #4a454f

#4f4545 · #454f45

Split-complementary

Open in tool →

#4f4a45 · #4a4f45

#4f454a · #4f4f45 · #454f4a

Contrast

#45454f as textRatioAAAA largeAAAFix
Aaon white
9.47:1passpasspassPasses AAA — no fix needed.
Aaon black
2.22:1failfailfail
  • AA: use #747486 as the text (4.59:1)
  • AAA: use #9595a3 as the text (7.11:1)
  • AA: or shift the background to #b3b3b3 (4.52:1)
  • AAA: or shift the background to #dedede (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #45454f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#45454f reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #45454f
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 #45454f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45454f-a2beb0-c859d4-1f2d2b-eaf1e9?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