Color

#454bc4

#454bc4
hex#454bc4
rgbrgb(69, 75, 196)
hslhsl(237, 52%, 52%)
oklchoklch(0.483 0.185 274.9)
Closest name: Blurple (#5539cc)Relative luminance 0.1028

Colors that go with #454bc4

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 →

#c4be45

#458bc4 · #7e45c4

#c4454b · #4bc445

Split-complementary

Open in tool →

#c47e45 · #8bc445

#c4458b · #c4be45 · #45c47e

Contrast

#454bc4 as textRatioAAAA largeAAAFix
Aaon white
6.87:1passpassfail
  • AAA: use #4148c3 as the text (7.14:1)
Aaon black
3.06:1failpassfail
  • AA: use #686dcf as the text (4.68:1)
  • AAA: use #8b8fda as the text (7.04:1)
  • AA: or shift the background to #d4d4d4 (4.64:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #454bc4 as the background.

Brands using this color

Fonts for this mood

#454bc4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #454bc4
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 #454bc4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/454bc4-9f9cc4-df924e-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