# #281bda

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

## Values

- Hex: `#281bda`
- RGB: rgb(40, 27, 218)
- HSL: hsl(244, 78%, 48%)
- OKLCH: oklch(0.427 0.261 269.9)
- Relative luminance: 0.063
- Nearest named color: Lapis on Neptune (#1f22d2, Δ 1.511) — https://brandsweets.com/colors/lapis-on-neptune
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/281bda

## Tints & shades

- Tints (toward white): #362ae5, #4c40e7, #6157ea, #766eed, #8c84f0, #a19bf3, #b6b2f5, #ccc9f8, #e1dffb, #f6f6fe
- Shades (toward black): #2419c8, #2016b1, #1d149f, #191188, #150f76, #120c64, #0e0a4d, #0b073b, #070424, #030212

## Harmonies

- Complementary: #cdda1b
- Analogous: #1b6eda, #871bda
- Triadic: #da281b, #1bda28
- Split-complementary: #da871b, #6eda1b
- Tetradic: #da1b6e, #cdda1b, #1bda87

## Colors that go with #281bda

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 #281bda: softer than #000 and cool enough to feel like part of the same palette. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Jeep (https://brandsweets.com/colors/brands/jeep-com), HP (https://brandsweets.com/colors/brands/hp-com), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #281bda — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Behance (https://brandsweets.com/colors/brands/behance-net), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/crimson
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #281bda: 5 real palettes, including Qualcomm's brand system and Canva's brand system, as the supporting colour. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/cornflowerblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #281bda: 5 real palettes, including Unilever's brand system and Activision's brand system, as the accent. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #281bda: 6 real palettes, including Cargo's brand system and Readymag's brand system, as the lead colour. Seen in: Cargo (https://brandsweets.com/colors/brands/cargo-site), Readymag (https://brandsweets.com/colors/brands/readymag-com), Samsung (https://brandsweets.com/colors/brands/samsung-com), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 10 real palettes, including Monzo's brand system and Sketch's brand system put Midnight Blue beside #281bda, as the lead colour. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), MLB (https://brandsweets.com/colors/brands/mlb-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com). — https://brandsweets.com/colors/midnightblue
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #281bda in 8 real palettes, including Doordash's brand system and Monzo's brand system, as the lead colour. Seen in: Doordash (https://brandsweets.com/colors/brands/doordash-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Intercom (https://brandsweets.com/colors/brands/intercom-com). — https://brandsweets.com/colors/orangered
- **Red** #ff0000 [pool] — Red is paired with #281bda in 7 real palettes, including 3M's brand system and Doordash's brand system, as the lead colour. Seen in: 3M (https://brandsweets.com/colors/brands/3m-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), Gap (https://brandsweets.com/colors/brands/gap-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 9.29:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.26:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6e65ec (4.74:1); AA: background → #b5b5b5 (4.53:1); AAA: text → #9089f0 (7.02:1); AAA: background → #e0e0e0 (7.04:1)

## 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/281bda-a39cc4-dfa24e-261f2d-e9edf1?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: "#281bda" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.