Color

#4d4fcb

#4d4fcb
hex#4d4fcb
rgbrgb(77, 79, 203)
hslhsl(239, 55%, 55%)
oklchoklch(0.501 0.188 276.5)
Closest name: Blurple (#5539cc)Relative luminance 0.1148

Colors that go with #4d4fcb

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 →

#cbc94d

#4d8ecb · #8a4dcb

#cb4d4f · #4fcb4d

Split-complementary

Open in tool →

#cb8a4d · #8ecb4d

#cb4d8e · #cbc94d · #4dcb8a

Contrast

#4d4fcb as textRatioAAAA largeAAAFix
Aaon white
6.37:1passpassfail
  • AAA: use #4547c9 as the text (7.01:1)
Aaon black
3.3:1failpassfail
  • AA: use #696bd3 as the text (4.64:1)
  • AAA: use #8c8ede as the text (7.04:1)
  • AA: or shift the background to #d9d9d9 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4d4fcb as the background.

Brands using this color

Fonts for this mood

#4d4fcb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4d4fcb
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 #4d4fcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4d4fcb-a09cc4-df964e-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