Color

#b3b3b3

#b3b3b3
hex#b3b3b3
rgbrgb(179, 179, 179)
hslhsl(0, 0%, 70%)
oklchoklch(0.767 0 0)
Closest name: Casper (#aab5b8)Relative luminance 0.4508

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b3b3b3

#b3b3b3 · #b3b3b3

#b3b3b3 · #b3b3b3

Split-complementary

Open in tool →

#b3b3b3 · #b3b3b3

#b3b3b3 · #b3b3b3 · #b3b3b3

Contrast

#b3b3b3 as textRatioAAAA largeAAAFix
Aaon white
2.1:1failfailfail
  • AA: use #757575 as the text (4.61:1)
  • AAA: use #595959 as the text (7:1)
  • AA: or shift the background to #454545 (4.57:1)
  • AAA: or shift the background to #262626 (7.22:1)
Aaon black
10.02:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b3b3b3 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

#b3b3b3 reads as neutral, light, minimal. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b3b3b3
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 #b3b3b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3b3b3-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