# #0640ef

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

## Values

- Hex: `#0640ef`
- RGB: rgb(6, 64, 239)
- HSL: hsl(225, 95%, 48%)
- OKLCH: oklch(0.484 0.262 264)
- Relative luminance: 0.0994
- Nearest named color: C64 Blue (#003aff, Δ 2.506) — https://brandsweets.com/colors/c64-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0640ef

## Tints & shades

- Tints (toward white): #154ef9, #2e61fa, #4774fa, #6087fb, #7999fc, #92acfc, #aabffd, #c3d2fd, #dce5fe, #f5f7ff
- Shades (toward black): #063bdb, #0534c2, #042fae, #042895, #032381, #031d6d, #021755, #021141, #010b28, #010514

## Harmonies

- Complementary: #efb506
- Analogous: #06b5ef, #4006ef
- Triadic: #ef0640, #40ef06
- Split-complementary: #ef4006, #b5ef06
- Tetradic: #ef06b5, #efb506, #06ef40

## Colors that go with #0640ef

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 #0640ef: softer than #000 and cool enough to feel like part of the same palette. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), Campus (https://brandsweets.com/palettes/friendly#campus), UEFA (https://brandsweets.com/colors/brands/uefa-com), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #0640ef — 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), Behance (https://brandsweets.com/colors/brands/behance-net), Chase (https://brandsweets.com/colors/brands/chase-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #0640ef in 5 real palettes, including Walmart's brand system and Binance's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Binance (https://brandsweets.com/colors/brands/binance-com), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #0640ef: 11 real palettes, including Zillow's brand system and Oreo's brand system, as the supporting colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Oreo (https://brandsweets.com/colors/brands/oreo-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #0640ef: 9 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), Roblox (https://brandsweets.com/colors/brands/roblox-com). — https://brandsweets.com/colors/cornflowerblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #0640ef: 10 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), Intel (https://brandsweets.com/colors/brands/intel-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #0640ef: 9 real palettes, including Unity's brand system and Coursera's brand system, as the lead colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Coursera (https://brandsweets.com/colors/brands/coursera-org), Cargo (https://brandsweets.com/colors/brands/cargo-site), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/dodgerblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #0640ef: 5 real palettes, including Bose's brand system and MLB's brand system, as the accent. Seen in: Bose (https://brandsweets.com/colors/brands/bose-com), MLB (https://brandsweets.com/colors/brands/mlb-com), 3M (https://brandsweets.com/colors/brands/3m-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 7.03:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.99:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3869fa (4.57:1); AA: background → #cfcfcf (4.51:1); AAA: text → #6f92fb (7.18:1); AAA: background → #ffffff (7.03:1)

## Brands using this color

- **Pixar** — accent #0040e5 (Δ 1.589) — https://brandsweets.com/colors/brands/pixar-com

## 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/0640ef-9ca1c4-df754e-221f2d-e9eff1?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: "#0640ef" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.