# #f4fb13

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

## Values

- Hex: `#f4fb13`
- RGB: rgb(244, 251, 19)
- HSL: hsl(62, 97%, 53%)
- OKLCH: oklch(0.951 0.208 111.8)
- Relative luminance: 0.8827
- Nearest named color: Busy Bee (#f4ff00, Δ 1.084) — https://brandsweets.com/colors/busy-bee
- Moods: vivid
- Page: https://brandsweets.com/colors/f4fb13

## Tints & shades

- Tints (toward white): #f5fc2c, #f6fc40, #f7fc59, #f8fd6d, #f9fd86, #fafd9b, #fbfeb4, #fcfec8, #feffe1, #fffff5
- Shades (toward black): #e9f104, #d1d803, #b9bf03, #a0a603, #8d9202, #757902, #5c5f01, #444601, #2c2d01, #131400

## Harmonies

- Complementary: #1b13fb
- Analogous: #fb8f13, #7ffb13
- Triadic: #13f4fb, #fb13f4
- Split-complementary: #137ffb, #8f13fb
- Tetradic: #13fb8f, #1b13fb, #fb137f

## Colors that go with #f4fb13

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 Snapchat's brand system and Robinhood's brand system put Blue beside #f4fb13, as the supporting colour. Seen in: Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-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 #f4fb13 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), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Taupe** #483c32 [pool] — Taupe is paired with #f4fb13 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
- **Violet** #ee82ee [harmony, pool: split] — Violet is a split-complement of #f4fb13: 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
- **Plum** #dda0dd [harmony: complementary] — Plum sits directly opposite #f4fb13 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
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #f4fb13: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #f4fb13: 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 #f4fb13, 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): 1.13:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #757902 (4.67:1); AA: background → #6e6e6e (4.53:1); AAA: text → #575a01 (7.32:1); AAA: background → #4f4f4f (7.28:1)
- On black (#000000): 18.65:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Snapchat** — primary #fffc00 (Δ 1.51) — https://brandsweets.com/colors/brands/snapchat-com
- **Snapchat** — accent #fffc00 (Δ 1.51) — https://brandsweets.com/colors/brands/snapchat-com
- **Calvin Klein** — accent #ffff00 (Δ 1.871) — https://brandsweets.com/colors/brands/calvinklein-us
- **Tommy Hilfiger** — accent #ffff00 (Δ 1.871) — https://brandsweets.com/colors/brands/tommy-com

## Curated palettes containing it

- **Arcade** (neon, vivid, dark, bold) — #ff2e88, #00f0ff, #faff00, #0a0a14, #f5f5ff — Hot pink, cyan and acid yellow on near-black — cabinet-glow neon; the black surface is what makes the colours light up. — tool: https://brandsweets.com/palettes/new/ff2e88-00f0ff-faff00-0a0a14-f5f5ff — collection: https://brandsweets.com/palettes/neon

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/f4fb13-babea2-4e8fdf-272d1f-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: "#f4fb13" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.