Color

#4d50b3

#4d50b3
hex#4d50b3
rgbrgb(77, 80, 179)
hslhsl(238, 40%, 50%)
oklchoklch(0.484 0.154 277.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1057

Colors that go with #4d50b3

Charcoal, Sea Green and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b3af4d

#4d83b3 · #7c4db3

#b34d50 · #50b34d

Split-complementary

Open in tool →

#b37c4d · #83b34d

#b34d83 · #b3af4d · #4db37c

Contrast

#4d50b3 as textRatioAAAA largeAAAFix
Aaon white
6.74:1passpassfail
  • AAA: use #494dab as the text (7.16:1)
Aaon black
3.11:1failpassfail
  • AA: use #6d6fc0 as the text (4.69:1)
  • AAA: use #9092d0 as the text (7.21:1)
  • AA: or shift the background to #d4d4d4 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4d50b3 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

#4d50b3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4d50b3
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #4d50b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4d50b3-9f9cc4-df944e-251f2d-e9edf1?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