# #4e03b0

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

## Values

- Hex: `#4e03b0`
- RGB: rgb(78, 3, 176)
- HSL: hsl(266, 97%, 35%)
- OKLCH: oklch(0.393 0.221 290)
- Relative luminance: 0.0482
- Nearest named color: Galactic Highway (#3311bb, Δ 5.625) — https://brandsweets.com/colors/galactic-highway
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/4e03b0

## Tints & shades

- Tints (toward white): #5b03ce, #6b04f1, #7b18fb, #8c36fc, #a059fc, #b177fd, #c396fd, #d4b4fe, #e8d7fe, #f9f5ff
- Shades (toward black): #4702a1, #400292, #3a0283, #330274, #2c0264, #240150, #1d0141, #160132, #100123, #090014

## Harmonies

- Complementary: #65b003
- Analogous: #030eb0, #a403b0
- Triadic: #b04e03, #03b04e
- Split-complementary: #b0a403, #0eb003
- Tetradic: #b0030e, #65b003, #03b0a4

## Colors that go with #4e03b0

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

- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #4e03b0's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Nivea (https://brandsweets.com/colors/brands/nivea-com), Wayfair (https://brandsweets.com/colors/brands/wayfair-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/royalblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #4e03b0: 4 real palettes, including Zillow's brand system and Unilever's brand system, as the supporting colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Tide (https://brandsweets.com/colors/brands/tide-com), Oreo (https://brandsweets.com/colors/brands/oreo-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #4e03b0 in 4 real palettes, including Wells Fargo's brand system and Gemstone, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Pepsi (https://brandsweets.com/colors/brands/pepsi-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/crimson
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #4e03b0, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Air France (https://brandsweets.com/colors/brands/airfrance-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com). — https://brandsweets.com/colors/midnightblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #4e03b0 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
- **Blue** #0000ff [pool] — 3 real palettes, including Zillow's brand system and Procter & Gamble's brand system put Blue beside #4e03b0, as the lead colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Pfizer (https://brandsweets.com/colors/brands/pfizer-com). — https://brandsweets.com/colors/blue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #4e03b0: 3 real palettes, including Unilever's brand system and Slack's brand system, as the accent. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Slack (https://brandsweets.com/colors/brands/slack-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com). — https://brandsweets.com/colors/denim
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #4e03b0: 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): 10.69:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.96:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9445fc (4.52:1); AA: background → #ababab (4.66:1); AAA: text → #b47cfd (7.24:1); AAA: background → #d1d1d1 (7:1)

## 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/4e03b0-b29cc4-dfd74e-2b1f2d-e9eaf1?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: "#4e03b0" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.