Color

#451c87

#451c87
hex#451c87
rgbrgb(69, 28, 135)
hslhsl(263, 66%, 32%)
oklchoklch(0.357 0.163 293.8)
Closest name: Galactic Civilization (#442288)Relative luminance 0.0384

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#5e871c

#1c2887 · #7b1c87

#87451c · #1c8745

Split-complementary

Open in tool →

#877b1c · #28871c

#871c28 · #5e871c · #1c877b

Contrast

#451c87 as textRatioAAAA largeAAAFix
Aaon white
11.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #8c5add as the text (4.62:1)
  • AAA: use #aa84e6 as the text (7.15:1)
  • AA: or shift the background to #a1a1a1 (4.59:1)
  • AAA: or shift the background to #c7c7c7 (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 #451c87 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

#451c87 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #451c87
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #451c87 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/451c87-b09cc4-dfd04e-2b1f2d-e9eaf1?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