# #3555d4

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

## Values

- Hex: `#3555d4`
- RGB: rgb(53, 85, 212)
- HSL: hsl(228, 65%, 52%)
- OKLCH: oklch(0.506 0.198 267.7)
- Relative luminance: 0.1201
- Nearest named color: God of Rain (#4466cc, Δ 4.944) — https://brandsweets.com/colors/god-of-rain
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3555d4

## Tints & shades

- Tints (toward white): #4a67d9, #5b75dc, #7086e1, #8195e4, #96a6e9, #abb8ed, #bcc6f1, #d1d8f5, #e2e6f9, #f7f8fd
- Shades (toward black): #2a49c6, #2541b1, #223ba0, #1d338b, #192c76, #152461, #101c4c, #0c163b, #080e26, #040611

## Harmonies

- Complementary: #d4b435
- Analogous: #35a4d4, #6535d4
- Triadic: #d43555, #55d435
- Split-complementary: #d46535, #a4d435
- Tetradic: #d435a4, #d4b435, #35d465

## Colors that go with #3555d4

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 #3555d4: softer than #000 and cool enough to feel like part of the same palette. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #3555d4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #3555d4 in 8 real palettes, including Walmart's brand system and Wikipedia's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 15 real palettes, including Pixar's brand system and Headspace's brand system put Blue beside #3555d4, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Signal (https://brandsweets.com/colors/brands/signal-org). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [harmony, pool: analogous] — Blue Violet is #3555d4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Twitch (https://brandsweets.com/colors/brands/twitch-tv), ClickUp (https://brandsweets.com/colors/brands/clickup-com). — https://brandsweets.com/colors/blueviolet
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3555d4: 8 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the supporting colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), NBA (https://brandsweets.com/colors/brands/nba-com), Roblox (https://brandsweets.com/colors/brands/roblox-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #3555d4 in 17 real palettes, including Netflix's brand system and Ulta Beauty's brand system, as the lead colour. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com), Chase (https://brandsweets.com/colors/brands/chase-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #3555d4: 7 real palettes, including Calm's brand system and Elastic's brand system, as the lead colour. Seen in: Calm (https://brandsweets.com/colors/brands/calm-com), Elastic (https://brandsweets.com/colors/brands/elastic-co), Venmo (https://brandsweets.com/colors/brands/venmo-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 6.17:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #2b4bca (7.09:1)
- On black (#000000): 3.4:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #526eda (4.6:1); AA: background → #dedede (4.59:1); AAA: text → #7d91e3 (7.03:1)

## Brands using this color

- **Brave** — secondary #434fcf (Δ 1.984) — https://brandsweets.com/colors/brands/brave-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/3555d4-9c9fc4-df7c4e-231f2d-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: "#3555d4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.