Color

#456ae3

#456ae3
hex#456ae3
rgbrgb(69, 106, 227)
hslhsl(226, 74%, 58%)
oklchoklch(0.565 0.189 267.3)
Closest name: Royal Blue (#4169e1)Relative luminance 0.1712

Colors that go with #456ae3

Charcoal, Crimson and Sea Green 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 →

#e3be45

#45b9e3 · #6f45e3

#e3456a · #6ae345

Split-complementary

Open in tool →

#e36f45 · #b9e345

#e345b9 · #e3be45 · #45e36f

Contrast

#456ae3 as textRatioAAAA largeAAAFix
Aaon white
4.75:1passpassfail
  • AAA: use #1f49d1 as the text (7.16:1)
Aaon black
4.42:1failpassfail
  • AA: use #496de4 as the text (4.59:1)
  • AAA: use #7a94eb as the text (7.26:1)
  • AA: or shift the background to #fafafa (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 #456ae3 as the background.

Brands using this color

Fonts for this mood

#456ae3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #456ae3
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 #456ae3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/456ae3-9ca1c4-df774e-221f2d-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