Color

#453f83

#453f83
hex#453f83
rgbrgb(69, 63, 131)
hslhsl(245, 35%, 38%)
oklchoklch(0.41 0.11 284.4)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0646

Colors that go with #453f83

Steel Blue, Blue and Crimson 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 →

#7d833f

#3f5b83 · #673f83

#83453f · #3f8345

Split-complementary

Open in tool →

#83673f · #5b833f

#833f5b · #7d833f · #3f8367

Contrast

#453f83 as textRatioAAAA largeAAAFix
Aaon white
9.16:1passpasspassPasses AAA — no fix needed.
Aaon black
2.29:1failfailfail
  • AA: use #756eb9 as the text (4.69:1)
  • AAA: use #9691ca as the text (7.2:1)
  • AA: or shift the background to #b8b8b8 (4.62:1)
  • AAA: or shift the background to #e3e3e3 (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 #453f83 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

#453f83 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #453f83
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 #453f83 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/453f83-a49cc4-dfa54e-261f2d-e9ecf1?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