Color

#450fcc

#450fcc
hex#450fcc
rgbrgb(69, 15, 204)
hslhsl(257, 86%, 43%)
oklchoklch(0.422 0.245 280.6)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0597

Colors that go with #450fcc

Charcoal, Denim and Cobalt 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 →

#97cc0f

#0f38cc · #a30fcc

#cc450f · #0fcc45

Split-complementary

Open in tool →

#cca30f · #38cc0f

#cc0f38 · #97cc0f · #0fcca3

Contrast

#450fcc as textRatioAAAA largeAAAFix
Aaon white
9.57:1passpasspassPasses AAA — no fix needed.
Aaon black
2.19:1failfailfail
  • AA: use #8459f3 as the text (4.7:1)
  • AAA: use #a484f6 as the text (7.21:1)
  • AA: or shift the background to #b3b3b3 (4.57:1)
  • AAA: or shift the background to #dedede (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #450fcc 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

#450fcc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #450fcc
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 #450fcc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/450fcc-ac9cc4-dfc24e-291f2d-e9ebf1?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