# #dde421

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

## Values

- Hex: `#dde421`
- RGB: rgb(221, 228, 33)
- HSL: hsl(62, 78%, 51%)
- OKLCH: oklch(0.884 0.19 112)
- Relative luminance: 0.7097
- Nearest named color: Bitter Lemon (#d2db32, Δ 3.015) — https://brandsweets.com/colors/bitter-lemon
- Moods: vivid
- Page: https://brandsweets.com/colors/dde421

## Tints & shades

- Tints (toward white): #e0e637, #e3e949, #e7eb60, #eaee77, #eef18e, #f0f3a0, #f4f6b6, #f7f9cd, #fafbdf, #fefef6
- Shades (toward black): #cbd11a, #b9bf18, #a3a815, #8d9112, #7b7f10, #65680d, #4f520a, #393b07, #282905, #121202

## Harmonies

- Complementary: #2721e4
- Analogous: #e48921, #7ce421
- Triadic: #21dde4, #e421dd
- Split-complementary: #217ce4, #8921e4
- Tetradic: #21e489, #2721e4, #e4217c

## Colors that go with #dde421

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 body-text near-black for #dde421: 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), Lido (https://brandsweets.com/palettes/vivid#lido), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Plum** #dda0dd [harmony, pool: complementary] — Plum sits directly opposite #dde421 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/plum
- **Blue** #0000ff [pool] — 4 real palettes, including Binance's brand system and Robinhood's brand system put Blue beside #dde421, as the accent. Seen in: Binance (https://brandsweets.com/colors/brands/binance-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Snapchat (https://brandsweets.com/colors/brands/snapchat-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #dde421: 4 real palettes, including NBA's brand system and Ahrefs's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #dde421 in 8 real palettes, including Lay's's brand system and Tequila Sunrise, as the accent. Seen in: Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise), Ferrari (https://brandsweets.com/colors/brands/ferrari-com), Tabloid (https://brandsweets.com/palettes/editorial#tabloid). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #dde421: 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), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #dde421: 7 real palettes, including Ikea's brand system and LEGO's brand system, as the accent. Seen in: Ikea (https://brandsweets.com/colors/brands/ikea-com), LEGO (https://brandsweets.com/colors/brands/lego-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #dde421: 5 real palettes, including Miro's brand system and Star Wars's brand system, as the accent. Seen in: Miro (https://brandsweets.com/colors/brands/miro-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com), JetBrains (https://brandsweets.com/colors/brands/jetbrains-com), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 1.38:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #777b0f (4.54:1); AA: background → #5e5e5e (4.69:1); AAA: text → #585b0b (7.2:1); AAA: background → #424242 (7.27:1)
- On black (#000000): 15.19:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/dde421-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: "#dde421" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.