# #4b28fb

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

## Values

- Hex: `#4b28fb`
- RGB: rgb(75, 40, 251)
- HSL: hsl(250, 96%, 57%)
- OKLCH: oklch(0.496 0.28 276.4)
- Relative luminance: 0.0998
- Nearest named color: Blustering Blue (#4411ff, Δ 2.271) — https://brandsweets.com/colors/blustering-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/4b28fb

## Tints & shades

- Tints (toward white): #5c3cfb, #6d50fb, #7d64fc, #8e78fc, #a391fd, #b4a5fd, #c4b9fe, #d5cdfe, #e6e1fe, #f7f5ff
- Shades (toward black): #360ffa, #2a05e6, #2604cd, #2104b4, #1c039b, #17037d, #120264, #0e024b, #08012d, #040014

## Harmonies

- Complementary: #d8fb28
- Analogous: #286efb, #b428fb
- Triadic: #fb4b28, #28fb4b
- Split-complementary: #fbb428, #6efb28
- Tetradic: #fb286e, #d8fb28, #28fbb4

## Colors that go with #4b28fb

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

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #4b28fb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #4b28fb: 10 real palettes, including Zillow's brand system and NHL's brand system, as the supporting colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Oreo (https://brandsweets.com/colors/brands/oreo-com), Nokia (https://brandsweets.com/colors/brands/nokia-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #4b28fb: 6 real palettes, including Qualcomm's brand system and Roblox's brand system, as the supporting colour. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #4b28fb in 7 real palettes, including Coinbase's brand system and Toyota's brand system. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Toyota (https://brandsweets.com/colors/brands/toyota-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #4b28fb: 4 real palettes, including Warp's brand system and Kraken's brand system, as the lead colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Kraken (https://brandsweets.com/colors/brands/kraken-com), Render (https://brandsweets.com/colors/brands/render-com), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #4b28fb: 7 real palettes, including Pixar's brand system and Dairy Queen's brand system, as the supporting colour. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Dairy Queen (https://brandsweets.com/colors/brands/dairyqueen-com), Activision (https://brandsweets.com/colors/brands/activision-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #4b28fb: 7 real palettes, including Unity's brand system and OnePlus's brand system, as the lead colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), OnePlus (https://brandsweets.com/colors/brands/oneplus-com), Cargo (https://brandsweets.com/colors/brands/cargo-site), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/dodgerblue
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #4b28fb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Kia (https://brandsweets.com/colors/brands/kia-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/seagreen

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

- On white (#ffffff): 7.01:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 3:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #755afc (4.62:1); AA: background → #d1d1d1 (4.59:1); AAA: text → #9b87fd (7.28:1); AAA: background → #ffffff (7.01:1)

## 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/4b28fb-a79cc4-dfb14e-281f2d-e9ecf1?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: "#4b28fb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.