# #e5f231

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

## Values

- Hex: `#e5f231`
- RGB: rgb(229, 242, 49)
- HSL: hsl(64, 88%, 57%)
- OKLCH: oklch(0.921 0.196 113.7)
- Relative luminance: 0.8038
- Nearest named color: Buttercup Glow (#f1f458, Δ 2.962) — https://brandsweets.com/colors/buttercup-glow
- Moods: vivid
- Page: https://brandsweets.com/colors/e5f231

## Tints & shades

- Tints (toward white): #e7f344, #eaf457, #ecf66a, #eff77e, #f2f896, #f4f9a9, #f7fbbc, #f9fccf, #fbfde2, #fefef5
- Shades (toward black): #e2f019, #cfdd0e, #b8c50d, #a2ad0b, #8b9509, #707808, #5a6006, #434805, #282b03, #121301

## Harmonies

- Complementary: #3e31f2
- Analogous: #f29e31, #84f231
- Triadic: #31e5f2, #f231e5
- Split-complementary: #3184f2, #9e31f2
- Tetradic: #31f29e, #3e31f2, #f23184

## Colors that go with #e5f231

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 #e5f231, as the supporting colour. Seen in: Robinhood (https://brandsweets.com/colors/brands/robinhood-com), Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Binance (https://brandsweets.com/colors/brands/binance-com), Bumble (https://brandsweets.com/colors/brands/bumble-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #e5f231: 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), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #e5f231 in 8 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), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #e5f231: 6 real palettes, including Ikea's brand system and FIFA's brand system, as the accent. Seen in: Ikea (https://brandsweets.com/colors/brands/ikea-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), LEGO (https://brandsweets.com/colors/brands/lego-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim
- **Red** #ff0000 [pool] — Red is paired with #e5f231 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 #e5f231 in 7 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
- **Tomato** #ff6347 [pool] — 4 real palettes, including Crayon Box and Night Market put Tomato beside #e5f231, as the lead colour. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Night Market (https://brandsweets.com/palettes/vivid#night-market), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/tomato
- **Violet** #ee82ee [harmony, pool: split] — Violet is a split-complement of #e5f231: 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

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

- On white (#ffffff): 1.23:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #707808 (4.8:1); AA: background → #666666 (4.67:1); AAA: text → #555b06 (7.28:1); AAA: background → #4a4a4a (7.21:1)
- On black (#000000): 17.08:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Gumroad** — secondary #f1f333 (Δ 1.681) — https://brandsweets.com/colors/brands/gumroad-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/e5f231-b9bea2-4e8adf-262d1f-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: "#e5f231" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.