brandsweets

Named color

Extraviolet

#661188
hex#661188
rgbrgb(102, 17, 136)
hslhsl(283, 78%, 30%)
oklchoklch(0.393 0.181 313)
Relative luminance 0.05
CoolVividDarkTechnicalModernLuxuryBold
Open in palette toolCheck contrast

Extraviolet on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the curated palettes it appears in and any public brand that adopts it.

Tints & shades

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

Harmonies

Complementary

Open in tool →
661188338811

#338811

Analogous

Open in tool →
6611882b118888116e

#2b1188 · #88116e

Triadic

Open in tool →
661188886611118866

#886611 · #118866

Split-complementary

Open in tool →
6611886e881111882b

#6e8811 · #11882b

Tetradic

Open in tool →
661188882b11338811116e88

#882b11 · #338811 · #116e88

Contrast

Extraviolet as textRatioAAAA largeAAAFix
Aaon white
10.5:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #b333e6 as the text (4.53:1)
  • AAA: use #cb72ee as the text (7.18:1)
  • AA: or shift the background to #ababab (4.57:1)
  • AAA: or shift the background to #d4d4d4 (7.08:1)

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

Extraviolet reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →Luxury fonts →Bold fonts →
mcpConnect your agent — build around Extraviolet
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 #661188 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/661188-bb9fc1-b2cb62-2d1f2b-ebe9f1?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