# #4045dd

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

## Values

- Hex: `#4045dd`
- RGB: rgb(64, 69, 221)
- HSL: hsl(238, 70%, 56%)
- OKLCH: oklch(0.492 0.225 273.1)
- Relative luminance: 0.1057
- Nearest named color: Blurple (#5539cc, Δ 4.52) — https://brandsweets.com/colors/blurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/4045dd

## Tints & shades

- Tints (toward white): #5256e0, #6367e3, #797ce7, #8a8dea, #9b9eed, #adaff0, #bec0f4, #d4d5f7, #e5e6fa, #f6f7fd
- Shades (toward black): #2b30da, #2329c7, #1f23ad, #1b1f98, #171b82, #13166c, #0f1257, #0b0c3d, #070827, #030411

## Harmonies

- Complementary: #ddd840
- Analogous: #4094dd, #8a40dd
- Triadic: #dd4045, #45dd40
- Split-complementary: #dd8a40, #94dd40
- Tetradic: #dd4094, #ddd840, #40dd8a

## Colors that go with #4045dd

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 #4045dd: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), UEFA (https://brandsweets.com/colors/brands/uefa-com), HP (https://brandsweets.com/colors/brands/hp-com), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #4045dd — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #4045dd in 6 real palettes, including Walmart's brand system and Warner Bros.'s brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Headspace's brand system and Dropbox's brand system put Blue beside #4045dd, as the accent. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), BBC (https://brandsweets.com/colors/brands/bbc-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #4045dd: 10 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), Gopro (https://brandsweets.com/colors/brands/gopro-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #4045dd in 17 real palettes, including Behance's brand system and Chase's brand system, as the accent. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Chase (https://brandsweets.com/colors/brands/chase-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Toyota (https://brandsweets.com/colors/brands/toyota-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #4045dd: 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), Calm (https://brandsweets.com/colors/brands/calm-com), Elastic (https://brandsweets.com/colors/brands/elastic-co). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #4045dd: 9 real palettes, including Coursera's brand system and OnePlus's brand system, as the supporting colour. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), OnePlus (https://brandsweets.com/colors/brands/oneplus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 6.75:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #3c41dd (7.02:1)
- On black (#000000): 3.11:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6367e3 (4.58:1); AA: background → #d4d4d4 (4.55:1); AAA: text → #8a8dea (7.08:1)

## 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/4045dd-9f9cc4-df944e-251f2d-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: "#4045dd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.