brandsweets

Color

#4b637c

#4b637c
hex#4b637c
rgbrgb(75, 99, 124)
hslhsl(211, 25%, 39%)
oklchoklch(0.491 0.05 249.9)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1187
CoolMuted
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
4b637c7c644b

#7c644b

Analogous

Open in tool →
4b637c4b7b7c4b4b7c

#4b7b7c · #4b4b7c

Triadic

Open in tool →
4b637c7c4b63637c4b

#7c4b63 · #637c4b

Split-complementary

Open in tool →
4b637c7c4b4b7b7c4b

#7c4b4b · #7b7c4b

Tetradic

Open in tool →
4b637c7c4b7b7c644b4b7c4b

#7c4b7b · #7c644b · #4b7c4b

Contrast

#4b637c as textRatioAAAA largeAAAFix
Aaon white
6.22:1passpassfail
  • AAA: use #455b73 as the text (7.01:1)
Aaon black
3.37:1failpassfail
  • AA: use #5a7796 as the text (4.51:1)
  • AAA: use #8098b3 as the text (7.06:1)
  • AA: or shift the background to #dedede (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 #4b637c as the background.

Brands using this color

mcpConnect your agent — build around #4b637c
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 #4b637c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b637c-9cabc4-df534e-1f202d-e9f1f1?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