brandsweets

Color

#515f67

#515f67
hex#515f67
rgbrgb(81, 95, 103)
hslhsl(202, 12%, 36%)
oklchoklch(0.477 0.022 232.9)
Closest name: Blindfolded (#5a5e61)Relative luminance 0.1091
CoolMuted
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
515f67675951

#675951

Analogous

Open in tool →
515f67516764515467

#516764 · #515467

Triadic

Open in tool →
515f6767515f5f6751

#67515f · #5f6751

Split-complementary

Open in tool →
515f67675154676451

#675154 · #676451

Tetradic

Open in tool →
515f67645167675951546751

#645167 · #675951 · #546751

Contrast

#515f67 as textRatioAAAA largeAAAFix
Aaon white
6.6:1passpassfail
  • AAA: use #4c5961 as the text (7.22:1)
Aaon black
3.18:1failpassfail
  • AA: use #677983 as the text (4.64:1)
  • AAA: use #8a9aa3 as the text (7.23:1)
  • AA: or shift the background to #d6d6d6 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #515f67 as the background.

Brands using this color

mcpConnect your agent — build around #515f67
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 #515f67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/515f67-9cb1c4-df4e5f-1f222d-e9f1f0?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