# #550a8a

A color — cool, vivid, dark, technical, modern, luxury, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#550a8a`
- RGB: rgb(85, 10, 138)
- HSL: hsl(275, 86%, 29%)
- OKLCH: oklch(0.366 0.183 303.9)
- Relative luminance: 0.0398
- Nearest named color: Indigo Static (#4b0183, Δ 2.691) — https://brandsweets.com/colors/indigo-static
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/550a8a

## Tints & shades

- Tints (toward white): #690dab, #7d0fcc, #9212ed, #a133f0, #b054f2, #bd71f4, #cd92f7, #dcb3f9, #ebd4fc, #fbf6fe
- Shades (toward black): #4f0a80, #460972, #400868, #37075a, #320651, #290542, #230439, #1a032b, #140221, #0c0113

## Harmonies

- Complementary: #3f8a0a
- Analogous: #150a8a, #8a0a7f
- Triadic: #8a550a, #0a8a55
- Split-complementary: #7f8a0a, #0a8a15
- Tetradic: #8a150a, #3f8a0a, #0a7f8a

## Colors that go with #550a8a

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #550a8a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/olive
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #550a8a: softer than #000 and cool enough to feel like part of the same palette. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #550a8a in 3 real palettes, including Lenovo's brand system and Wells Fargo's brand system, as the supporting colour. Seen in: Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #550a8a's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Discord (https://brandsweets.com/colors/brands/discord). — https://brandsweets.com/colors/royalblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #550a8a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #550a8a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #550a8a in two real palettes: Taco Bell's brand system and Twitch's brand system, as the supporting colour. Seen in: Taco Bell (https://brandsweets.com/colors/brands/tacobell-com), Twitch (https://brandsweets.com/colors/brands/twitch-tv). — https://brandsweets.com/colors/blueviolet
- **Denim** #1560bd [pool] — Designers have shipped Denim with #550a8a: two real palettes: Slack's brand system and Hinge's brand system, as the lead colour. Seen in: Slack (https://brandsweets.com/colors/brands/slack-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/denim

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 11.69:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.8:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #a53df0 (4.53:1); AA: background → #a1a1a1 (4.52:1); AAA: text → #c075f5 (7.1:1); AAA: background → #c9c9c9 (7.06:1)

## Brands using this color

- **FedEx** — primary #4d148c (Δ 1.952) — https://brandsweets.com/colors/brands/fedex-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/550a8a-b89cc4-c0cb62-2d1f2d-eae9f1?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#550a8a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.