brandsweets

Color

#515e76

#515e76
hex#515e76
rgbrgb(81, 94, 118)
hslhsl(219, 19%, 39%)
oklchoklch(0.48 0.042 262.6)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1106
CoolMuted
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
515e76766951

#766951

Analogous

Open in tool →
515e76517176565176

#517176 · #565176

Triadic

Open in tool →
515e7676515e5e7651

#76515e · #5e7651

Split-complementary

Open in tool →
515e76765651717651

#765651 · #717651

Tetradic

Open in tool →
515e76765171766951517656

#765171 · #766951 · #517656

Contrast

#515e76 as textRatioAAAA largeAAAFix
Aaon white
6.54:1passpassfail
  • AAA: use #4c5970 as the text (7.07:1)
Aaon black
3.21:1failpassfail
  • AA: use #657695 as the text (4.58:1)
  • AAA: use #8996ae as the text (7.04:1)
  • AA: or shift the background to #d9d9d9 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #515e76 as the background.

Brands using this color

mcpConnect your agent — build around #515e76
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 #515e76 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/515e76-9ca5c4-df664e-211f2d-e9f0f1?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