Color

#45404a

#45404a
hex#45404a
rgbrgb(69, 64, 74)
hslhsl(270, 7%, 27%)
oklchoklch(0.38 0.018 307.9)
Closest name: Black Panther (#424242)Relative luminance 0.0543

Tints & shades

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

Harmonies

Complementary

Open in tool →

#454a40

#40404a · #4a404a

#4a4540 · #404a45

Split-complementary

Open in tool →

#4a4a40 · #404a40

#4a4040 · #454a40 · #404a4a

Contrast

#45404a as textRatioAAAA largeAAAFix
Aaon white
10.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #7a7283 as the text (4.56:1)
  • AAA: use #9c95a3 as the text (7.24:1)
  • AA: or shift the background to #b0b0b0 (4.64:1)
  • AAA: or shift the background to #d9d9d9 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #45404a 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

#45404a reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #45404a
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 #45404a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45404a-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