# #5403aa

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

## Values

- Hex: `#5403aa`
- RGB: rgb(84, 3, 170)
- HSL: hsl(269, 97%, 34%)
- OKLCH: oklch(0.394 0.215 294.2)
- Relative luminance: 0.0485
- Nearest named color: Intergalactic Settlement (#5b1e8b, Δ 5.878) — https://brandsweets.com/colors/intergalactic-settlement
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/5403aa

## Tints & shades

- Tints (toward white): #6303c9, #7404ec, #8313fb, #9636fc, #a554fc, #b572fd, #c896fd, #d8b4fe, #ead7fe, #faf5ff
- Shades (toward black): #4c029c, #45028d, #3e027e, #36026f, #2f015f, #270150, #200141, #190132, #110123, #0a0014

## Harmonies

- Complementary: #5aab03
- Analogous: #0305ab, #a803ab
- Triadic: #ab5403, #03ab54
- Split-complementary: #aba803, #05ab03
- Tetradic: #ab0305, #5aab03, #03aba8

## Colors that go with #5403aa

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 #5403aa 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
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #5403aa: 3 real palettes, including Zillow's brand system and Tide's brand system, as the supporting colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Tide (https://brandsweets.com/colors/brands/tide-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #5403aa: 3 real palettes, including Slack's brand system and Unilever's brand system, as the lead colour. Seen in: Slack (https://brandsweets.com/colors/brands/slack-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #5403aa'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), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/royalblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #5403aa — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal
- **Forest Green** #228b22 [harmony: split] — Forest Green is a split-complement of #5403aa: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/forestgreen
- **Blue** #0000ff [pool] — Two real palettes: Zillow's brand system and Procter & Gamble's brand system put Blue beside #5403aa, as the lead colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #5403aa: 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). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 10.66:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.97:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9b40fc (4.53:1); AA: background → #ababab (4.64:1); AAA: text → #b877fd (7.1:1); AAA: background → #d4d4d4 (7.19:1)

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/5403aa-b49cc4-cbcb62-2c1f2d-e9e9f1?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: "#5403aa" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.