# #28055c

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

## Values

- Hex: `#28055c`
- RGB: rgb(40, 5, 92)
- HSL: hsl(264, 90%, 19%)
- OKLCH: oklch(0.254 0.134 291.5)
- Relative luminance: 0.0133
- Nearest named color: Blackmail (#220066, Δ 2.457) — https://brandsweets.com/colors/blackmail
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/28055c

## Tints & shades

- Tints (toward white): #380783, #4909aa, #5a0bd0, #6c12f3, #8438f5, #995af6, #b181f8, #c9a8fa, #e1cffc, #f9f5fe
- Shades (toward black): #260557, #21044e, #1f0449, #1b033f, #19033a, #150330, #13022c, #0f0222, #0d021d, #080113

## Harmonies

- Complementary: #395c05
- Analogous: #050e5c, #53055c
- Triadic: #5c2805, #055c28
- Split-complementary: #5c5305, #0e5c05
- Tetradic: #5c050e, #395c05, #055c53

## Colors that go with #28055c

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 #28055c: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Volkswagen (https://brandsweets.com/colors/brands/vw-com), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #28055c's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Spectrum (https://brandsweets.com/colors/brands/spectrum-com), Penpot (https://brandsweets.com/colors/brands/penpot-app), Discord (https://brandsweets.com/colors/brands/discord), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/royalblue
- **Blue** #0000ff [pool] — 5 real palettes, including Penpot's brand system and Sketch's brand system put Blue beside #28055c, as the supporting colour. Seen in: Penpot (https://brandsweets.com/colors/brands/penpot-app), Sketch (https://brandsweets.com/colors/brands/sketch-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #28055c: 6 real palettes, including SoFi's brand system and Open House, as the supporting colour. Seen in: SoFi (https://brandsweets.com/colors/brands/sofi-com), Open House (https://brandsweets.com/palettes/clean#open-house), Arctic (https://brandsweets.com/palettes/clean#arctic), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #28055c: 7 real palettes, including Glacier and Blue Mono, as the accent. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), MLB (https://brandsweets.com/colors/brands/mlb-com), Air France (https://brandsweets.com/colors/brands/airfrance-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #28055c: 4 real palettes, including Blue Mono and Peacock's brand system, as the supporting colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Peacock (https://brandsweets.com/colors/brands/peacocktv-com), Arctic (https://brandsweets.com/palettes/clean#arctic), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #28055c in 6 real palettes, including Nintendo's brand system and Casper Sleep's brand system, as the supporting colour. Seen in: Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #28055c: 4 real palettes, including Kraken's brand system and Deep Water, as the accent. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 16.58:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.27:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #904cf6 (4.55:1); AA: background → #878787 (4.62:1); AAA: text → #ae7cf8 (7.04:1); AAA: background → #ababab (7.22:1)

## 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/28055c-b19cc4-dfd34e-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: "#28055c" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.