# #e3fd3a

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#e3fd3a`
- RGB: rgb(227, 253, 58)
- HSL: hsl(68, 98%, 61%)
- OKLCH: oklch(0.944 0.203 117.3)
- Relative luminance: 0.8689
- Nearest named color: Banana Flash (#eefe02, Δ 1.794) — https://brandsweets.com/colors/banana-flash
- Moods: vivid
- Page: https://brandsweets.com/colors/e3fd3a

## Tints & shades

- Tints (toward white): #e6fd4e, #e8fd5d, #ebfe72, #eefe86, #f1fe9a, #f3fea9, #f6febd, #f9ffd2, #fbffe1, #fefff5
- Shades (toward black): #dffd1c, #dbfc03, #c1de02, #a7c002, #91a702, #768801, #5c6a01, #424c01, #2c3201, #121400

## Harmonies

- Complementary: #543afd
- Analogous: #fdb63a, #82fd3a
- Triadic: #3ae3fd, #fd3ae3
- Split-complementary: #3a82fd, #b63afd
- Tetradic: #3afdb6, #543afd, #fd3a82

## Colors that go with #e3fd3a

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Blue** #0000ff [pool] — 4 real palettes, including Robinhood's brand system and Snapchat's brand system put Blue beside #e3fd3a, as the supporting colour. Seen in: Robinhood (https://brandsweets.com/colors/brands/robinhood-com), Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Binance (https://brandsweets.com/colors/brands/binance-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #e3fd3a in 5 real palettes, including Ferrari's brand system and Lay's's brand system, as the lead colour. Seen in: Ferrari (https://brandsweets.com/colors/brands/ferrari-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/crimson
- **Red** #ff0000 [pool] — Red is paired with #e3fd3a in 4 real palettes, including Heineken's brand system and Paddle's brand system, as the accent. Seen in: Heineken (https://brandsweets.com/colors/brands/heineken-com), Paddle (https://brandsweets.com/colors/brands/paddle-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Taupe** #483c32 [pool] — Taupe is paired with #e3fd3a in 4 real palettes, including Calvin Klein's brand system and Tommy Hilfiger's brand system, as the lead colour. Seen in: Calvin Klein (https://brandsweets.com/colors/brands/calvinklein-us), Tommy Hilfiger (https://brandsweets.com/colors/brands/tommy-com), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/taupe
- **Plum** #dda0dd [harmony: complementary] — Plum sits directly opposite #e3fd3a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/plum
- **Violet** #ee82ee [harmony, pool: split] — Violet is a split-complement of #e3fd3a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Gumroad (https://brandsweets.com/colors/brands/gumroad-com). — https://brandsweets.com/colors/violet
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #e3fd3a: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Deep Pink** #ff1493 [pool] — 3 real palettes, including Arcade and JetBrains's brand system put Deep Pink beside #e3fd3a, as the lead colour. Seen in: Arcade (https://brandsweets.com/palettes/vivid#arcade), JetBrains (https://brandsweets.com/colors/brands/jetbrains-com), Night Market (https://brandsweets.com/palettes/vivid#night-market). — https://brandsweets.com/colors/deeppink

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

- On white (#ffffff): 1.14:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6e7e01 (4.52:1); AA: background → #6b6b6b (4.66:1); AAA: text → #4f5b01 (7.42:1); AAA: background → #4f4f4f (7.17:1)
- On black (#000000): 18.38:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Klaviyo** — secondary #deff00 (Δ 1.855) — https://brandsweets.com/colors/brands/klaviyo-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/e3fd3a-b7bea2-4e81df-252d1f-f1eee9?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: "#e3fd3a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.