# #abca21

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

## Values

- Hex: `#abca21`
- RGB: rgb(171, 202, 33)
- HSL: hsl(71, 72%, 46%)
- OKLCH: oklch(0.789 0.18 120.5)
- Relative luminance: 0.5101
- Nearest named color: yellowgreen (#9acd32, Δ 2.022) — https://brandsweets.com/colors/yellowgreen
- Moods: vivid
- Page: https://brandsweets.com/colors/abca21

## Tints & shades

- Tints (toward white): #bbdc28, #c2e03e, #cae458, #d1e76e, #d8eb84, #dfef9a, #e6f2b0, #eef6ca, #f5fae0, #fcfef6
- Shades (toward black): #9cb81e, #8da71b, #7b9118, #6c7f15, #5d6e12, #4e5c0f, #3f4b0c, #2d3509, #1e2306, #0f1203

## Harmonies

- Complementary: #4021ca
- Analogous: #ca9421, #56ca21
- Triadic: #21abca, #ca21ab
- Split-complementary: #2156ca, #9421ca
- Tetradic: #21ca94, #4021ca, #ca2156

## Colors that go with #abca21

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

- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #abca21 in 4 real palettes, including Citrus Grove and Learning App, as the lead colour. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Learning App (https://brandsweets.com/palettes/playful#learning-app), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #abca21 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), 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 #abca21: 4 real palettes, including Wikipedia's brand system and Walmart's brand system, as the supporting colour. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #abca21 in 11 real palettes, including Citrus Grove and Acer's brand system, as the text colour against it. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Acer (https://brandsweets.com/colors/brands/acer-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Plum** #dda0dd [harmony: complementary] — Plum sits directly opposite #abca21 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 #abca21: 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
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #abca21: 3 real palettes, including Coastal and Diner, as the lead colour. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Diner (https://brandsweets.com/palettes/vivid#diner), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/cadetblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #abca21: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 1.87:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #687b14 (4.74:1); AA: background → #4d4d4d (4.51:1); AAA: text → #4e5c0f (7.34:1); AAA: background → #303030 (7.04:1)
- On black (#000000): 11.2:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Steam** — accent #a1cd44 (Δ 1.88) — https://brandsweets.com/colors/brands/steampowered-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/abca21-b6bea2-4e7adf-252d1f-f1efe9?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: "#abca21" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.