Color

#454cb0

#454cb0
hex#454cb0
rgbrgb(69, 76, 176)
hslhsl(236, 44%, 48%)
oklchoklch(0.468 0.157 275.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0957

Colors that go with #454cb0

Charcoal, Sea Green and Steel Blue 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 →

#b0a945

#4582b0 · #7345b0

#b0454c · #4cb045

Split-complementary

Open in tool →

#b07345 · #82b045

#b04582 · #b0a945 · #45b073

Contrast

#454cb0 as textRatioAAAA largeAAAFix
Aaon white
7.21:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #686fc4 as the text (4.66:1)
  • AAA: use #8d92d3 as the text (7.18:1)
  • AA: or shift the background to #cfcfcf (4.63:1)
  • AAA: or shift the background to #fcfcfc (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #454cb0 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

#454cb0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #454cb0
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 #454cb0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/454cb0-9e9cc4-df8f4e-241f2d-e9eef1?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