Color

#4b5ca0

#4b5ca0
hex#4b5ca0
rgbrgb(75, 92, 160)
hslhsl(228, 36%, 46%)
oklchoklch(0.494 0.111 271.3)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1169

Colors that go with #4b5ca0

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 →

#a08f4b

#4b86a0 · #644ba0

#a04b5c · #5ca04b

Split-complementary

Open in tool →

#a0644b · #86a04b

#a04b86 · #a08f4b · #4ba064

Contrast

#4b5ca0 as textRatioAAAA largeAAAFix
Aaon white
6.29:1passpassfail
  • AAA: use #455492 as the text (7.15:1)
Aaon black
3.34:1failpassfail
  • AA: use #6373b6 as the text (4.66:1)
  • AAA: use #8996c8 as the text (7.26:1)
  • AA: or shift the background to #dbdbdb (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 #4b5ca0 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

#4b5ca0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b5ca0
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 #4b5ca0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b5ca0-9c9fc4-df7c4e-231f2d-e9eff1?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