Color

#4e90c6

#4e90c6
hex#4e90c6
rgbrgb(78, 144, 198)
hslhsl(207, 51%, 54%)
oklchoklch(0.633 0.106 245.3)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.2564

Colors that go with #4e90c6

Charcoal, Copper 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 →

#c6844e

#4ec6c0 · #4e54c6

#c64e90 · #90c64e

Split-complementary

Open in tool →

#c64e54 · #c6c04e

#c04ec6 · #c6844e · #54c64e

Contrast

#4e90c6 as textRatioAAAA largeAAAFix
Aaon white
3.43:1failpassfail
  • AA: use #397bb1 as the text (4.52:1)
  • AAA: use #2a5b83 as the text (7.19:1)
  • AA: or shift the background to #242424 (4.53:1)
Aaon black
6.13:1passpassfail
  • AAA: use #619ccc as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4e90c6 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

#4e90c6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4e90c6
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 #4e90c6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4e90c6-9cadc4-df4e53-1f212d-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